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Finding the Fourth Proportional to 18,095.60, 27,160.95 and 8,742.32

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Solution

The fourth proportional to 18,095.60, 27,160.95 and 8,742.32 is: 13,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,095.60 : 27,160.95 = 8,742.32 : x
  2. Step 2: Convert to fraction form
    18,095.60/27,160.95 = 8,742.32/x
  3. Step 3: Cross multiply
    18,095.60x = 27,160.95 × 8,742.32
  4. Step 4: Simplify right side
    18,095.60x = 237,449,580.60
  5. Step 5: Solve for x
    x = 237,449,580.60/18,095.60
  6. Step 6: Final answer
    x = 13,121.95

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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.