Home / 15,324.56-21,150.18-9,359.66

Finding the Fourth Proportional to 15,324.56, 21,150.18 and 9,359.66

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Solution

The fourth proportional to 15,324.56, 21,150.18 and 9,359.66 is: 12,917.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.56 : 21,150.18 = 9,359.66 : x
  2. Step 2: Convert to fraction form
    15,324.56/21,150.18 = 9,359.66/x
  3. Step 3: Cross multiply
    15,324.56x = 21,150.18 × 9,359.66
  4. Step 4: Simplify right side
    15,324.56x = 197,958,493.74
  5. Step 5: Solve for x
    x = 197,958,493.74/15,324.56
  6. Step 6: Final answer
    x = 12,917.73

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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.