Home / 18,153.16-27,204.40-9,815.20

Finding the Fourth Proportional to 18,153.16, 27,204.40 and 9,815.20

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Solution

The fourth proportional to 18,153.16, 27,204.40 and 9,815.20 is: 14,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.16 : 27,204.40 = 9,815.20 : x
  2. Step 2: Convert to fraction form
    18,153.16/27,204.40 = 9,815.20/x
  3. Step 3: Cross multiply
    18,153.16x = 27,204.40 × 9,815.20
  4. Step 4: Simplify right side
    18,153.16x = 267,016,626.88
  5. Step 5: Solve for x
    x = 267,016,626.88/18,153.16
  6. Step 6: Final answer
    x = 14,709.10

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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.