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Finding the Fourth Proportional to 12,492.59, 17,237.70 and 7,458.85

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Solution

The fourth proportional to 12,492.59, 17,237.70 and 7,458.85 is: 10,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.59 : 17,237.70 = 7,458.85 : x
  2. Step 2: Convert to fraction form
    12,492.59/17,237.70 = 7,458.85/x
  3. Step 3: Cross multiply
    12,492.59x = 17,237.70 × 7,458.85
  4. Step 4: Simplify right side
    12,492.59x = 128,573,375.55
  5. Step 5: Solve for x
    x = 128,573,375.55/12,492.59
  6. Step 6: Final answer
    x = 10,291.97

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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.