Home / 15,327.20-21,151.56-8,958.24

Finding the Fourth Proportional to 15,327.20, 21,151.56 and 8,958.24

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Solution

The fourth proportional to 15,327.20, 21,151.56 and 8,958.24 is: 12,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.20 : 21,151.56 = 8,958.24 : x
  2. Step 2: Convert to fraction form
    15,327.20/21,151.56 = 8,958.24/x
  3. Step 3: Cross multiply
    15,327.20x = 21,151.56 × 8,958.24
  4. Step 4: Simplify right side
    15,327.20x = 189,480,750.85
  5. Step 5: Solve for x
    x = 189,480,750.85/15,327.20
  6. Step 6: Final answer
    x = 12,362.39

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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.