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Finding the Fourth Proportional to 12,082.65, 18,126.95 and 9,763.68

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Solution

The fourth proportional to 12,082.65, 18,126.95 and 9,763.68 is: 14,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.65 : 18,126.95 = 9,763.68 : x
  2. Step 2: Convert to fraction form
    12,082.65/18,126.95 = 9,763.68/x
  3. Step 3: Cross multiply
    12,082.65x = 18,126.95 × 9,763.68
  4. Step 4: Simplify right side
    12,082.65x = 176,985,739.18
  5. Step 5: Solve for x
    x = 176,985,739.18/12,082.65
  6. Step 6: Final answer
    x = 14,647.92

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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.