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Finding the Fourth Proportional to 8,807.20, 13,203.12 and 6,625.12

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Solution

The fourth proportional to 8,807.20, 13,203.12 and 6,625.12 is: 9,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.20 : 13,203.12 = 6,625.12 : x
  2. Step 2: Convert to fraction form
    8,807.20/13,203.12 = 6,625.12/x
  3. Step 3: Cross multiply
    8,807.20x = 13,203.12 × 6,625.12
  4. Step 4: Simplify right side
    8,807.20x = 87,472,254.37
  5. Step 5: Solve for x
    x = 87,472,254.37/8,807.20
  6. Step 6: Final answer
    x = 9,931.90

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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.