Home / 12,646.76-17,452.58-7,344.68

Finding the Fourth Proportional to 12,646.76, 17,452.58 and 7,344.68

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Solution

The fourth proportional to 12,646.76, 17,452.58 and 7,344.68 is: 10,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.76 : 17,452.58 = 7,344.68 : x
  2. Step 2: Convert to fraction form
    12,646.76/17,452.58 = 7,344.68/x
  3. Step 3: Cross multiply
    12,646.76x = 17,452.58 × 7,344.68
  4. Step 4: Simplify right side
    12,646.76x = 128,183,615.27
  5. Step 5: Solve for x
    x = 128,183,615.27/12,646.76
  6. Step 6: Final answer
    x = 10,135.69

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Half scale
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Double scale
Find fourth proportional to 12,647.76, 17,453.96 and 7,345.68
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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.