Home / 10,701.28-16,028.40-8,831.20

Finding the Fourth Proportional to 10,701.28, 16,028.40 and 8,831.20

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Solution

The fourth proportional to 10,701.28, 16,028.40 and 8,831.20 is: 13,227.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,701.28 : 16,028.40 = 8,831.20 : x
  2. Step 2: Convert to fraction form
    10,701.28/16,028.40 = 8,831.20/x
  3. Step 3: Cross multiply
    10,701.28x = 16,028.40 × 8,831.20
  4. Step 4: Simplify right side
    10,701.28x = 141,550,006.08
  5. Step 5: Solve for x
    x = 141,550,006.08/10,701.28
  6. Step 6: Final answer
    x = 13,227.39

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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.