Home / 9,910.50-13,665.28-6,320.66

Finding the Fourth Proportional to 9,910.50, 13,665.28 and 6,320.66

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Solution

The fourth proportional to 9,910.50, 13,665.28 and 6,320.66 is: 8,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.50 : 13,665.28 = 6,320.66 : x
  2. Step 2: Convert to fraction form
    9,910.50/13,665.28 = 6,320.66/x
  3. Step 3: Cross multiply
    9,910.50x = 13,665.28 × 6,320.66
  4. Step 4: Simplify right side
    9,910.50x = 86,373,572.62
  5. Step 5: Solve for x
    x = 86,373,572.62/9,910.50
  6. Step 6: Final answer
    x = 8,715.36

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1.5x scale

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.