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Finding the Fourth Proportional to 10,603.68, 15,910.11 and 5,057.07

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Solution

The fourth proportional to 10,603.68, 15,910.11 and 5,057.07 is: 7,587.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.68 : 15,910.11 = 5,057.07 : x
  2. Step 2: Convert to fraction form
    10,603.68/15,910.11 = 5,057.07/x
  3. Step 3: Cross multiply
    10,603.68x = 15,910.11 × 5,057.07
  4. Step 4: Simplify right side
    10,603.68x = 80,458,539.98
  5. Step 5: Solve for x
    x = 80,458,539.98/10,603.68
  6. Step 6: Final answer
    x = 7,587.79

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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.