Home / 8,774.24-12,116.54-5,635.90

Finding the Fourth Proportional to 8,774.24, 12,116.54 and 5,635.90

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Solution

The fourth proportional to 8,774.24, 12,116.54 and 5,635.90 is: 7,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.24 : 12,116.54 = 5,635.90 : x
  2. Step 2: Convert to fraction form
    8,774.24/12,116.54 = 5,635.90/x
  3. Step 3: Cross multiply
    8,774.24x = 12,116.54 × 5,635.90
  4. Step 4: Simplify right side
    8,774.24x = 68,287,519.02
  5. Step 5: Solve for x
    x = 68,287,519.02/8,774.24
  6. Step 6: Final answer
    x = 7,782.73

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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.