Home / 10,572.24-15,858.54-2,780.76

Finding the Fourth Proportional to 10,572.24, 15,858.54 and 2,780.76

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Solution

The fourth proportional to 10,572.24, 15,858.54 and 2,780.76 is: 4,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.24 : 15,858.54 = 2,780.76 : x
  2. Step 2: Convert to fraction form
    10,572.24/15,858.54 = 2,780.76/x
  3. Step 3: Cross multiply
    10,572.24x = 15,858.54 × 2,780.76
  4. Step 4: Simplify right side
    10,572.24x = 44,098,793.69
  5. Step 5: Solve for x
    x = 44,098,793.69/10,572.24
  6. Step 6: Final answer
    x = 4,171.19

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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.