Home / 10,087.10-15,131.15-2,691.63

Finding the Fourth Proportional to 10,087.10, 15,131.15 and 2,691.63

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Solution

The fourth proportional to 10,087.10, 15,131.15 and 2,691.63 is: 4,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.10 : 15,131.15 = 2,691.63 : x
  2. Step 2: Convert to fraction form
    10,087.10/15,131.15 = 2,691.63/x
  3. Step 3: Cross multiply
    10,087.10x = 15,131.15 × 2,691.63
  4. Step 4: Simplify right side
    10,087.10x = 40,727,457.27
  5. Step 5: Solve for x
    x = 40,727,457.27/10,087.10
  6. Step 6: Final answer
    x = 4,037.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.