Home / 10,132.55-13,979-6,349.11

Finding the Fourth Proportional to 10,132.55, 13,979 and 6,349.11

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Solution

The fourth proportional to 10,132.55, 13,979 and 6,349.11 is: 8,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132.55 : 13,979 = 6,349.11 : x
  2. Step 2: Convert to fraction form
    10,132.55/13,979 = 6,349.11/x
  3. Step 3: Cross multiply
    10,132.55x = 13,979 × 6,349.11
  4. Step 4: Simplify right side
    10,132.55x = 88,754,208.69
  5. Step 5: Solve for x
    x = 88,754,208.69/10,132.55
  6. Step 6: Final answer
    x = 8,759.32

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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.