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Finding the Fourth Proportional to 8,800.16, 12,139.62 and 5,441.90

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Solution

The fourth proportional to 8,800.16, 12,139.62 and 5,441.90 is: 7,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.16 : 12,139.62 = 5,441.90 : x
  2. Step 2: Convert to fraction form
    8,800.16/12,139.62 = 5,441.90/x
  3. Step 3: Cross multiply
    8,800.16x = 12,139.62 × 5,441.90
  4. Step 4: Simplify right side
    8,800.16x = 66,062,598.08
  5. Step 5: Solve for x
    x = 66,062,598.08/8,800.16
  6. Step 6: Final answer
    x = 7,506.98

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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.