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Finding the Fourth Proportional to 12,482.80, 17,222.08 and 8,008.98

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Solution

The fourth proportional to 12,482.80, 17,222.08 and 8,008.98 is: 11,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.80 : 17,222.08 = 8,008.98 : x
  2. Step 2: Convert to fraction form
    12,482.80/17,222.08 = 8,008.98/x
  3. Step 3: Cross multiply
    12,482.80x = 17,222.08 × 8,008.98
  4. Step 4: Simplify right side
    12,482.80x = 137,931,294.28
  5. Step 5: Solve for x
    x = 137,931,294.28/12,482.80
  6. Step 6: Final answer
    x = 11,049.71

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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.