Home / 8,666.20-12,999.06-2,426.63

Finding the Fourth Proportional to 8,666.20, 12,999.06 and 2,426.63

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Solution

The fourth proportional to 8,666.20, 12,999.06 and 2,426.63 is: 3,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.20 : 12,999.06 = 2,426.63 : x
  2. Step 2: Convert to fraction form
    8,666.20/12,999.06 = 2,426.63/x
  3. Step 3: Cross multiply
    8,666.20x = 12,999.06 × 2,426.63
  4. Step 4: Simplify right side
    8,666.20x = 31,543,941.47
  5. Step 5: Solve for x
    x = 31,543,941.47/8,666.20
  6. Step 6: Final answer
    x = 3,639.88

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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.