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Finding the Fourth Proportional to 18,445.59, 27,662.31 and 10,130.13

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Solution

The fourth proportional to 18,445.59, 27,662.31 and 10,130.13 is: 15,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.59 : 27,662.31 = 10,130.13 : x
  2. Step 2: Convert to fraction form
    18,445.59/27,662.31 = 10,130.13/x
  3. Step 3: Cross multiply
    18,445.59x = 27,662.31 × 10,130.13
  4. Step 4: Simplify right side
    18,445.59x = 280,222,796.40
  5. Step 5: Solve for x
    x = 280,222,796.40/18,445.59
  6. Step 6: Final answer
    x = 15,191.86

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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.