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Finding the Fourth Proportional to 8,887.92, 12,263.97 and 5,301.78

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Solution

The fourth proportional to 8,887.92, 12,263.97 and 5,301.78 is: 7,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.92 : 12,263.97 = 5,301.78 : x
  2. Step 2: Convert to fraction form
    8,887.92/12,263.97 = 5,301.78/x
  3. Step 3: Cross multiply
    8,887.92x = 12,263.97 × 5,301.78
  4. Step 4: Simplify right side
    8,887.92x = 65,020,870.87
  5. Step 5: Solve for x
    x = 65,020,870.87/8,887.92
  6. Step 6: Final answer
    x = 7,315.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.