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Finding the Fourth Proportional to 8,908.65, 12,288.57 and 5,883.80

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Solution

The fourth proportional to 8,908.65, 12,288.57 and 5,883.80 is: 8,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.65 : 12,288.57 = 5,883.80 : x
  2. Step 2: Convert to fraction form
    8,908.65/12,288.57 = 5,883.80/x
  3. Step 3: Cross multiply
    8,908.65x = 12,288.57 × 5,883.80
  4. Step 4: Simplify right side
    8,908.65x = 72,303,488.17
  5. Step 5: Solve for x
    x = 72,303,488.17/8,908.65
  6. Step 6: Final answer
    x = 8,116.10

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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.