Home / 11,126.68-15,330.12-7,343.12

Finding the Fourth Proportional to 11,126.68, 15,330.12 and 7,343.12

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Solution

The fourth proportional to 11,126.68, 15,330.12 and 7,343.12 is: 10,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.68 : 15,330.12 = 7,343.12 : x
  2. Step 2: Convert to fraction form
    11,126.68/15,330.12 = 7,343.12/x
  3. Step 3: Cross multiply
    11,126.68x = 15,330.12 × 7,343.12
  4. Step 4: Simplify right side
    11,126.68x = 112,570,910.77
  5. Step 5: Solve for x
    x = 112,570,910.77/11,126.68
  6. Step 6: Final answer
    x = 10,117.21

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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.