Home / 10,686.86-14,747.85-5,907.16

Finding the Fourth Proportional to 10,686.86, 14,747.85 and 5,907.16

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Solution

The fourth proportional to 10,686.86, 14,747.85 and 5,907.16 is: 8,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.86 : 14,747.85 = 5,907.16 : x
  2. Step 2: Convert to fraction form
    10,686.86/14,747.85 = 5,907.16/x
  3. Step 3: Cross multiply
    10,686.86x = 14,747.85 × 5,907.16
  4. Step 4: Simplify right side
    10,686.86x = 87,117,909.61
  5. Step 5: Solve for x
    x = 87,117,909.61/10,686.86
  6. Step 6: Final answer
    x = 8,151.88

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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.