Home / 15,454.50-21,330.90-9,170.52

Finding the Fourth Proportional to 15,454.50, 21,330.90 and 9,170.52

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Solution

The fourth proportional to 15,454.50, 21,330.90 and 9,170.52 is: 12,657.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.50 : 21,330.90 = 9,170.52 : x
  2. Step 2: Convert to fraction form
    15,454.50/21,330.90 = 9,170.52/x
  3. Step 3: Cross multiply
    15,454.50x = 21,330.90 × 9,170.52
  4. Step 4: Simplify right side
    15,454.50x = 195,615,445.07
  5. Step 5: Solve for x
    x = 195,615,445.07/15,454.50
  6. Step 6: Final answer
    x = 12,657.51

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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.