Home / 8,980.28-13,456.38-5,686.44

Finding the Fourth Proportional to 8,980.28, 13,456.38 and 5,686.44

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Solution

The fourth proportional to 8,980.28, 13,456.38 and 5,686.44 is: 8,520.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.28 : 13,456.38 = 5,686.44 : x
  2. Step 2: Convert to fraction form
    8,980.28/13,456.38 = 5,686.44/x
  3. Step 3: Cross multiply
    8,980.28x = 13,456.38 × 5,686.44
  4. Step 4: Simplify right side
    8,980.28x = 76,518,897.49
  5. Step 5: Solve for x
    x = 76,518,897.49/8,980.28
  6. Step 6: Final answer
    x = 8,520.77

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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.