Home / 10,031.72-13,845.40-9,588.78

Finding the Fourth Proportional to 10,031.72, 13,845.40 and 9,588.78

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Solution

The fourth proportional to 10,031.72, 13,845.40 and 9,588.78 is: 13,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.72 : 13,845.40 = 9,588.78 : x
  2. Step 2: Convert to fraction form
    10,031.72/13,845.40 = 9,588.78/x
  3. Step 3: Cross multiply
    10,031.72x = 13,845.40 × 9,588.78
  4. Step 4: Simplify right side
    10,031.72x = 132,760,470.64
  5. Step 5: Solve for x
    x = 132,760,470.64/10,031.72
  6. Step 6: Final answer
    x = 13,234.08

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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.