Home / 18,683.38-25,778.58-10,615.26

Finding the Fourth Proportional to 18,683.38, 25,778.58 and 10,615.26

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Solution

The fourth proportional to 18,683.38, 25,778.58 and 10,615.26 is: 14,646.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683.38 : 25,778.58 = 10,615.26 : x
  2. Step 2: Convert to fraction form
    18,683.38/25,778.58 = 10,615.26/x
  3. Step 3: Cross multiply
    18,683.38x = 25,778.58 × 10,615.26
  4. Step 4: Simplify right side
    18,683.38x = 273,646,329.13
  5. Step 5: Solve for x
    x = 273,646,329.13/18,683.38
  6. Step 6: Final answer
    x = 14,646.51

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Half scale
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Double scale
Find fourth proportional to 18,684.38, 25,779.96 and 10,616.26
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.