Home / 11,031.92-15,236.40-7,488.96

Finding the Fourth Proportional to 11,031.92, 15,236.40 and 7,488.96

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Solution

The fourth proportional to 11,031.92, 15,236.40 and 7,488.96 is: 10,343.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.92 : 15,236.40 = 7,488.96 : x
  2. Step 2: Convert to fraction form
    11,031.92/15,236.40 = 7,488.96/x
  3. Step 3: Cross multiply
    11,031.92x = 15,236.40 × 7,488.96
  4. Step 4: Simplify right side
    11,031.92x = 114,104,790.14
  5. Step 5: Solve for x
    x = 114,104,790.14/11,031.92
  6. Step 6: Final answer
    x = 10,343.15

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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.