Home / 18,147.06-25,045.16-11,432.58

Finding the Fourth Proportional to 18,147.06, 25,045.16 and 11,432.58

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Solution

The fourth proportional to 18,147.06, 25,045.16 and 11,432.58 is: 15,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.06 : 25,045.16 = 11,432.58 : x
  2. Step 2: Convert to fraction form
    18,147.06/25,045.16 = 11,432.58/x
  3. Step 3: Cross multiply
    18,147.06x = 25,045.16 × 11,432.58
  4. Step 4: Simplify right side
    18,147.06x = 286,330,761.28
  5. Step 5: Solve for x
    x = 286,330,761.28/18,147.06
  6. Step 6: Final answer
    x = 15,778.35

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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.