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Finding the Fourth Proportional to 8,221.61, 12,332.53 and 2,674.98

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Solution

The fourth proportional to 8,221.61, 12,332.53 and 2,674.98 is: 4,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.61 : 12,332.53 = 2,674.98 : x
  2. Step 2: Convert to fraction form
    8,221.61/12,332.53 = 2,674.98/x
  3. Step 3: Cross multiply
    8,221.61x = 12,332.53 × 2,674.98
  4. Step 4: Simplify right side
    8,221.61x = 32,989,301.60
  5. Step 5: Solve for x
    x = 32,989,301.60/8,221.61
  6. Step 6: Final answer
    x = 4,012.51

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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.