Home / 10,472.95-15,711.74-3,455.13

Finding the Fourth Proportional to 10,472.95, 15,711.74 and 3,455.13

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Solution

The fourth proportional to 10,472.95, 15,711.74 and 3,455.13 is: 5,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.95 : 15,711.74 = 3,455.13 : x
  2. Step 2: Convert to fraction form
    10,472.95/15,711.74 = 3,455.13/x
  3. Step 3: Cross multiply
    10,472.95x = 15,711.74 × 3,455.13
  4. Step 4: Simplify right side
    10,472.95x = 54,286,086.95
  5. Step 5: Solve for x
    x = 54,286,086.95/10,472.95
  6. Step 6: Final answer
    x = 5,183.46

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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.