Home / 18,454.15-25,432.95-13,409.54

Finding the Fourth Proportional to 18,454.15, 25,432.95 and 13,409.54

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Solution

The fourth proportional to 18,454.15, 25,432.95 and 13,409.54 is: 18,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.15 : 25,432.95 = 13,409.54 : x
  2. Step 2: Convert to fraction form
    18,454.15/25,432.95 = 13,409.54/x
  3. Step 3: Cross multiply
    18,454.15x = 25,432.95 × 13,409.54
  4. Step 4: Simplify right side
    18,454.15x = 341,044,160.34
  5. Step 5: Solve for x
    x = 341,044,160.34/18,454.15
  6. Step 6: Final answer
    x = 18,480.62

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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.