Home / 8,778.07-12,114.66-5,243.23

Finding the Fourth Proportional to 8,778.07, 12,114.66 and 5,243.23

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Solution

The fourth proportional to 8,778.07, 12,114.66 and 5,243.23 is: 7,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.07 : 12,114.66 = 5,243.23 : x
  2. Step 2: Convert to fraction form
    8,778.07/12,114.66 = 5,243.23/x
  3. Step 3: Cross multiply
    8,778.07x = 12,114.66 × 5,243.23
  4. Step 4: Simplify right side
    8,778.07x = 63,519,948.75
  5. Step 5: Solve for x
    x = 63,519,948.75/8,778.07
  6. Step 6: Final answer
    x = 7,236.21

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Half scale
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Double scale
Find fourth proportional to 8,779.07, 12,116.04 and 5,244.23
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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.