Home / 15,454.75-21,327.56-8,381.18

Finding the Fourth Proportional to 15,454.75, 21,327.56 and 8,381.18

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Solution

The fourth proportional to 15,454.75, 21,327.56 and 8,381.18 is: 11,566.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.75 : 21,327.56 = 8,381.18 : x
  2. Step 2: Convert to fraction form
    15,454.75/21,327.56 = 8,381.18/x
  3. Step 3: Cross multiply
    15,454.75x = 21,327.56 × 8,381.18
  4. Step 4: Simplify right side
    15,454.75x = 178,750,119.32
  5. Step 5: Solve for x
    x = 178,750,119.32/15,454.75
  6. Step 6: Final answer
    x = 11,566.03

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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.