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Finding the Fourth Proportional to 8,477.65, 12,703.95 and 8,003.76

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Solution

The fourth proportional to 8,477.65, 12,703.95 and 8,003.76 is: 11,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.65 : 12,703.95 = 8,003.76 : x
  2. Step 2: Convert to fraction form
    8,477.65/12,703.95 = 8,003.76/x
  3. Step 3: Cross multiply
    8,477.65x = 12,703.95 × 8,003.76
  4. Step 4: Simplify right side
    8,477.65x = 101,679,366.85
  5. Step 5: Solve for x
    x = 101,679,366.85/8,477.65
  6. Step 6: Final answer
    x = 11,993.82

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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.