Home / 18,392.85-25,389.76-12,432.59

Finding the Fourth Proportional to 18,392.85, 25,389.76 and 12,432.59

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Solution

The fourth proportional to 18,392.85, 25,389.76 and 12,432.59 is: 17,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.85 : 25,389.76 = 12,432.59 : x
  2. Step 2: Convert to fraction form
    18,392.85/25,389.76 = 12,432.59/x
  3. Step 3: Cross multiply
    18,392.85x = 25,389.76 × 12,432.59
  4. Step 4: Simplify right side
    18,392.85x = 315,660,508.67
  5. Step 5: Solve for x
    x = 315,660,508.67/18,392.85
  6. Step 6: Final answer
    x = 17,162.13

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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.