Home / 10,101.30-15,146.88-6,400.71

Finding the Fourth Proportional to 10,101.30, 15,146.88 and 6,400.71

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Solution

The fourth proportional to 10,101.30, 15,146.88 and 6,400.71 is: 9,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.30 : 15,146.88 = 6,400.71 : x
  2. Step 2: Convert to fraction form
    10,101.30/15,146.88 = 6,400.71/x
  3. Step 3: Cross multiply
    10,101.30x = 15,146.88 × 6,400.71
  4. Step 4: Simplify right side
    10,101.30x = 96,950,786.28
  5. Step 5: Solve for x
    x = 96,950,786.28/10,101.30
  6. Step 6: Final answer
    x = 9,597.85

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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.