Home / 18,836.64-25,983.12-12,463.20

Finding the Fourth Proportional to 18,836.64, 25,983.12 and 12,463.20

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Solution

The fourth proportional to 18,836.64, 25,983.12 and 12,463.20 is: 17,191.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.64 : 25,983.12 = 12,463.20 : x
  2. Step 2: Convert to fraction form
    18,836.64/25,983.12 = 12,463.20/x
  3. Step 3: Cross multiply
    18,836.64x = 25,983.12 × 12,463.20
  4. Step 4: Simplify right side
    18,836.64x = 323,832,821.18
  5. Step 5: Solve for x
    x = 323,832,821.18/18,836.64
  6. Step 6: Final answer
    x = 17,191.64

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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.