Home / 10,087.68-15,114.40-7,151.36

Finding the Fourth Proportional to 10,087.68, 15,114.40 and 7,151.36

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Solution

The fourth proportional to 10,087.68, 15,114.40 and 7,151.36 is: 10,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.68 : 15,114.40 = 7,151.36 : x
  2. Step 2: Convert to fraction form
    10,087.68/15,114.40 = 7,151.36/x
  3. Step 3: Cross multiply
    10,087.68x = 15,114.40 × 7,151.36
  4. Step 4: Simplify right side
    10,087.68x = 108,088,515.58
  5. Step 5: Solve for x
    x = 108,088,515.58/10,087.68
  6. Step 6: Final answer
    x = 10,714.90

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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.