Home / 11,422.48-17,129.40-4,851.76

Finding the Fourth Proportional to 11,422.48, 17,129.40 and 4,851.76

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Solution

The fourth proportional to 11,422.48, 17,129.40 and 4,851.76 is: 7,275.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.48 : 17,129.40 = 4,851.76 : x
  2. Step 2: Convert to fraction form
    11,422.48/17,129.40 = 4,851.76/x
  3. Step 3: Cross multiply
    11,422.48x = 17,129.40 × 4,851.76
  4. Step 4: Simplify right side
    11,422.48x = 83,107,737.74
  5. Step 5: Solve for x
    x = 83,107,737.74/11,422.48
  6. Step 6: Final answer
    x = 7,275.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.