Home / 10,337.56-15,478.70-8,247.72

Finding the Fourth Proportional to 10,337.56, 15,478.70 and 8,247.72

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Solution

The fourth proportional to 10,337.56, 15,478.70 and 8,247.72 is: 12,349.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,337.56 : 15,478.70 = 8,247.72 : x
  2. Step 2: Convert to fraction form
    10,337.56/15,478.70 = 8,247.72/x
  3. Step 3: Cross multiply
    10,337.56x = 15,478.70 × 8,247.72
  4. Step 4: Simplify right side
    10,337.56x = 127,663,983.56
  5. Step 5: Solve for x
    x = 127,663,983.56/10,337.56
  6. Step 6: Final answer
    x = 12,349.53

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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.