Home / 10,101.12-13,939.02-5,624.70

Finding the Fourth Proportional to 10,101.12, 13,939.02 and 5,624.70

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Solution

The fourth proportional to 10,101.12, 13,939.02 and 5,624.70 is: 7,761.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.12 : 13,939.02 = 5,624.70 : x
  2. Step 2: Convert to fraction form
    10,101.12/13,939.02 = 5,624.70/x
  3. Step 3: Cross multiply
    10,101.12x = 13,939.02 × 5,624.70
  4. Step 4: Simplify right side
    10,101.12x = 78,402,805.79
  5. Step 5: Solve for x
    x = 78,402,805.79/10,101.12
  6. Step 6: Final answer
    x = 7,761.79

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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.