Home / 12,495.32-18,748.16-5,471.70

Finding the Fourth Proportional to 12,495.32, 18,748.16 and 5,471.70

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Solution

The fourth proportional to 12,495.32, 18,748.16 and 5,471.70 is: 8,209.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.32 : 18,748.16 = 5,471.70 : x
  2. Step 2: Convert to fraction form
    12,495.32/18,748.16 = 5,471.70/x
  3. Step 3: Cross multiply
    12,495.32x = 18,748.16 × 5,471.70
  4. Step 4: Simplify right side
    12,495.32x = 102,584,279.71
  5. Step 5: Solve for x
    x = 102,584,279.71/12,495.32
  6. Step 6: Final answer
    x = 8,209.82

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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.