Home / 18,306.10-25,254.38-12,335.59

Finding the Fourth Proportional to 18,306.10, 25,254.38 and 12,335.59

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Solution

The fourth proportional to 18,306.10, 25,254.38 and 12,335.59 is: 17,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.10 : 25,254.38 = 12,335.59 : x
  2. Step 2: Convert to fraction form
    18,306.10/25,254.38 = 12,335.59/x
  3. Step 3: Cross multiply
    18,306.10x = 25,254.38 × 12,335.59
  4. Step 4: Simplify right side
    18,306.10x = 311,527,739.79
  5. Step 5: Solve for x
    x = 311,527,739.79/18,306.10
  6. Step 6: Final answer
    x = 17,017.70

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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.