Home / 18,294.12-25,261.20-12,345.48

Finding the Fourth Proportional to 18,294.12, 25,261.20 and 12,345.48

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Solution

The fourth proportional to 18,294.12, 25,261.20 and 12,345.48 is: 17,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.12 : 25,261.20 = 12,345.48 : x
  2. Step 2: Convert to fraction form
    18,294.12/25,261.20 = 12,345.48/x
  3. Step 3: Cross multiply
    18,294.12x = 25,261.20 × 12,345.48
  4. Step 4: Simplify right side
    18,294.12x = 311,861,639.38
  5. Step 5: Solve for x
    x = 311,861,639.38/18,294.12
  6. Step 6: Final answer
    x = 17,047.10

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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.