Home / 18,423.45-25,404.28-12,444.74

Finding the Fourth Proportional to 18,423.45, 25,404.28 and 12,444.74

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Solution

The fourth proportional to 18,423.45, 25,404.28 and 12,444.74 is: 17,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.45 : 25,404.28 = 12,444.74 : x
  2. Step 2: Convert to fraction form
    18,423.45/25,404.28 = 12,444.74/x
  3. Step 3: Cross multiply
    18,423.45x = 25,404.28 × 12,444.74
  4. Step 4: Simplify right side
    18,423.45x = 316,149,666.62
  5. Step 5: Solve for x
    x = 316,149,666.62/18,423.45
  6. Step 6: Final answer
    x = 17,160.18

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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.