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Finding the Fourth Proportional to 18,248.78, 25,184.78 and 10,291.74

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Solution

The fourth proportional to 18,248.78, 25,184.78 and 10,291.74 is: 14,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,248.78 : 25,184.78 = 10,291.74 : x
  2. Step 2: Convert to fraction form
    18,248.78/25,184.78 = 10,291.74/x
  3. Step 3: Cross multiply
    18,248.78x = 25,184.78 × 10,291.74
  4. Step 4: Simplify right side
    18,248.78x = 259,195,156.26
  5. Step 5: Solve for x
    x = 259,195,156.26/18,248.78
  6. Step 6: Final answer
    x = 14,203.43

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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.