Home / 11,127.70-15,355.16-6,650.56

Finding the Fourth Proportional to 11,127.70, 15,355.16 and 6,650.56

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Solution

The fourth proportional to 11,127.70, 15,355.16 and 6,650.56 is: 9,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.70 : 15,355.16 = 6,650.56 : x
  2. Step 2: Convert to fraction form
    11,127.70/15,355.16 = 6,650.56/x
  3. Step 3: Cross multiply
    11,127.70x = 15,355.16 × 6,650.56
  4. Step 4: Simplify right side
    11,127.70x = 102,120,412.89
  5. Step 5: Solve for x
    x = 102,120,412.89/11,127.70
  6. Step 6: Final answer
    x = 9,177.14

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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.