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Finding the Fourth Proportional to 8,436.68, 12,655.03 and 2,196.68

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Solution

The fourth proportional to 8,436.68, 12,655.03 and 2,196.68 is: 3,295.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.68 : 12,655.03 = 2,196.68 : x
  2. Step 2: Convert to fraction form
    8,436.68/12,655.03 = 2,196.68/x
  3. Step 3: Cross multiply
    8,436.68x = 12,655.03 × 2,196.68
  4. Step 4: Simplify right side
    8,436.68x = 27,799,010.40
  5. Step 5: Solve for x
    x = 27,799,010.40/8,436.68
  6. Step 6: Final answer
    x = 3,295.02

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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.