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Finding the Fourth Proportional to 18,155.96, 27,214.58 and 10,347.96

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Solution

The fourth proportional to 18,155.96, 27,214.58 and 10,347.96 is: 15,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.96 : 27,214.58 = 10,347.96 : x
  2. Step 2: Convert to fraction form
    18,155.96/27,214.58 = 10,347.96/x
  3. Step 3: Cross multiply
    18,155.96x = 27,214.58 × 10,347.96
  4. Step 4: Simplify right side
    18,155.96x = 281,615,385.26
  5. Step 5: Solve for x
    x = 281,615,385.26/18,155.96
  6. Step 6: Final answer
    x = 15,510.91

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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.