Home / 10,421.24-15,608.10-6,515.96

Finding the Fourth Proportional to 10,421.24, 15,608.10 and 6,515.96

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Solution

The fourth proportional to 10,421.24, 15,608.10 and 6,515.96 is: 9,759.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.24 : 15,608.10 = 6,515.96 : x
  2. Step 2: Convert to fraction form
    10,421.24/15,608.10 = 6,515.96/x
  3. Step 3: Cross multiply
    10,421.24x = 15,608.10 × 6,515.96
  4. Step 4: Simplify right side
    10,421.24x = 101,701,755.28
  5. Step 5: Solve for x
    x = 101,701,755.28/10,421.24
  6. Step 6: Final answer
    x = 9,759.08

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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.