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Finding the Fourth Proportional to 8,866.08, 12,235.02 and 4,887.20

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Solution

The fourth proportional to 8,866.08, 12,235.02 and 4,887.20 is: 6,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.08 : 12,235.02 = 4,887.20 : x
  2. Step 2: Convert to fraction form
    8,866.08/12,235.02 = 4,887.20/x
  3. Step 3: Cross multiply
    8,866.08x = 12,235.02 × 4,887.20
  4. Step 4: Simplify right side
    8,866.08x = 59,794,989.74
  5. Step 5: Solve for x
    x = 59,794,989.74/8,866.08
  6. Step 6: Final answer
    x = 6,744.24

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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.