Home / 11,301.76-15,609.20-7,710.55

Finding the Fourth Proportional to 11,301.76, 15,609.20 and 7,710.55

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Solution

The fourth proportional to 11,301.76, 15,609.20 and 7,710.55 is: 10,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,301.76 : 15,609.20 = 7,710.55 : x
  2. Step 2: Convert to fraction form
    11,301.76/15,609.20 = 7,710.55/x
  3. Step 3: Cross multiply
    11,301.76x = 15,609.20 × 7,710.55
  4. Step 4: Simplify right side
    11,301.76x = 120,355,517.06
  5. Step 5: Solve for x
    x = 120,355,517.06/11,301.76
  6. Step 6: Final answer
    x = 10,649.27

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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.