Home / 10,080.11-13,909.47-5,603.15

Finding the Fourth Proportional to 10,080.11, 13,909.47 and 5,603.15

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Solution

The fourth proportional to 10,080.11, 13,909.47 and 5,603.15 is: 7,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.11 : 13,909.47 = 5,603.15 : x
  2. Step 2: Convert to fraction form
    10,080.11/13,909.47 = 5,603.15/x
  3. Step 3: Cross multiply
    10,080.11x = 13,909.47 × 5,603.15
  4. Step 4: Simplify right side
    10,080.11x = 77,936,777.28
  5. Step 5: Solve for x
    x = 77,936,777.28/10,080.11
  6. Step 6: Final answer
    x = 7,731.74

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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.