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Finding the Fourth Proportional to 8,500.65, 12,750.95 and 2,260.66

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Solution

The fourth proportional to 8,500.65, 12,750.95 and 2,260.66 is: 3,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.65 : 12,750.95 = 2,260.66 : x
  2. Step 2: Convert to fraction form
    8,500.65/12,750.95 = 2,260.66/x
  3. Step 3: Cross multiply
    8,500.65x = 12,750.95 × 2,260.66
  4. Step 4: Simplify right side
    8,500.65x = 28,825,588.46
  5. Step 5: Solve for x
    x = 28,825,588.46/8,500.65
  6. Step 6: Final answer
    x = 3,390.99

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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.