Home / 15,473.27-21,353.11-8,399.70

Finding the Fourth Proportional to 15,473.27, 21,353.11 and 8,399.70

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Solution

The fourth proportional to 15,473.27, 21,353.11 and 8,399.70 is: 11,591.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.27 : 21,353.11 = 8,399.70 : x
  2. Step 2: Convert to fraction form
    15,473.27/21,353.11 = 8,399.70/x
  3. Step 3: Cross multiply
    15,473.27x = 21,353.11 × 8,399.70
  4. Step 4: Simplify right side
    15,473.27x = 179,359,697.07
  5. Step 5: Solve for x
    x = 179,359,697.07/15,473.27
  6. Step 6: Final answer
    x = 11,591.58

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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.