Home / 15,148.54-20,902.92-8,433.28

Finding the Fourth Proportional to 15,148.54, 20,902.92 and 8,433.28

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Solution

The fourth proportional to 15,148.54, 20,902.92 and 8,433.28 is: 11,636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148.54 : 20,902.92 = 8,433.28 : x
  2. Step 2: Convert to fraction form
    15,148.54/20,902.92 = 8,433.28/x
  3. Step 3: Cross multiply
    15,148.54x = 20,902.92 × 8,433.28
  4. Step 4: Simplify right side
    15,148.54x = 176,280,177.18
  5. Step 5: Solve for x
    x = 176,280,177.18/15,148.54
  6. Step 6: Final answer
    x = 11,636.78

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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.