Home / 12,330.88-17,031.19-8,345.07

Finding the Fourth Proportional to 12,330.88, 17,031.19 and 8,345.07

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Solution

The fourth proportional to 12,330.88, 17,031.19 and 8,345.07 is: 11,526.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.88 : 17,031.19 = 8,345.07 : x
  2. Step 2: Convert to fraction form
    12,330.88/17,031.19 = 8,345.07/x
  3. Step 3: Cross multiply
    12,330.88x = 17,031.19 × 8,345.07
  4. Step 4: Simplify right side
    12,330.88x = 142,126,472.73
  5. Step 5: Solve for x
    x = 142,126,472.73/12,330.88
  6. Step 6: Final answer
    x = 11,526.06

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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.