Home / 14,841.14-20,480.76-8,127.20

Finding the Fourth Proportional to 14,841.14, 20,480.76 and 8,127.20

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Solution

The fourth proportional to 14,841.14, 20,480.76 and 8,127.20 is: 11,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.14 : 20,480.76 = 8,127.20 : x
  2. Step 2: Convert to fraction form
    14,841.14/20,480.76 = 8,127.20/x
  3. Step 3: Cross multiply
    14,841.14x = 20,480.76 × 8,127.20
  4. Step 4: Simplify right side
    14,841.14x = 166,451,130.27
  5. Step 5: Solve for x
    x = 166,451,130.27/14,841.14
  6. Step 6: Final answer
    x = 11,215.53

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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.