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Finding the Fourth Proportional to 8,808.85, 12,149.15 and 7,744.36

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Solution

The fourth proportional to 8,808.85, 12,149.15 and 7,744.36 is: 10,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.85 : 12,149.15 = 7,744.36 : x
  2. Step 2: Convert to fraction form
    8,808.85/12,149.15 = 7,744.36/x
  3. Step 3: Cross multiply
    8,808.85x = 12,149.15 × 7,744.36
  4. Step 4: Simplify right side
    8,808.85x = 94,087,322.20
  5. Step 5: Solve for x
    x = 94,087,322.20/8,808.85
  6. Step 6: Final answer
    x = 10,681.00

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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.