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Finding the Fourth Proportional to 18,342, 25,312.50 and 9,959.04

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Solution

The fourth proportional to 18,342, 25,312.50 and 9,959.04 is: 13,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342 : 25,312.50 = 9,959.04 : x
  2. Step 2: Convert to fraction form
    18,342/25,312.50 = 9,959.04/x
  3. Step 3: Cross multiply
    18,342x = 25,312.50 × 9,959.04
  4. Step 4: Simplify right side
    18,342x = 252,088,200.00
  5. Step 5: Solve for x
    x = 252,088,200.00/18,342
  6. Step 6: Final answer
    x = 13,743.77

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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.