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Finding the Fourth Proportional to 8,118.59, 12,168.97 and 5,303.95

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Solution

The fourth proportional to 8,118.59, 12,168.97 and 5,303.95 is: 7,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.59 : 12,168.97 = 5,303.95 : x
  2. Step 2: Convert to fraction form
    8,118.59/12,168.97 = 5,303.95/x
  3. Step 3: Cross multiply
    8,118.59x = 12,168.97 × 5,303.95
  4. Step 4: Simplify right side
    8,118.59x = 64,543,564.75
  5. Step 5: Solve for x
    x = 64,543,564.75/8,118.59
  6. Step 6: Final answer
    x = 7,950.10

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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.