Home / 18,851.28-28,272.60-8,466

Finding the Fourth Proportional to 18,851.28, 28,272.60 and 8,466

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Solution

The fourth proportional to 18,851.28, 28,272.60 and 8,466 is: 12,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.28 : 28,272.60 = 8,466 : x
  2. Step 2: Convert to fraction form
    18,851.28/28,272.60 = 8,466/x
  3. Step 3: Cross multiply
    18,851.28x = 28,272.60 × 8,466
  4. Step 4: Simplify right side
    18,851.28x = 239,355,831.60
  5. Step 5: Solve for x
    x = 239,355,831.60/18,851.28
  6. Step 6: Final answer
    x = 12,697.06

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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.