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Finding the Fourth Proportional to 8,341.68, 12,503.80 and 2,790.45

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Solution

The fourth proportional to 8,341.68, 12,503.80 and 2,790.45 is: 4,182.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,341.68 : 12,503.80 = 2,790.45 : x
  2. Step 2: Convert to fraction form
    8,341.68/12,503.80 = 2,790.45/x
  3. Step 3: Cross multiply
    8,341.68x = 12,503.80 × 2,790.45
  4. Step 4: Simplify right side
    8,341.68x = 34,891,251.67
  5. Step 5: Solve for x
    x = 34,891,251.67/8,341.68
  6. Step 6: Final answer
    x = 4,182.76

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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.