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Finding the Fourth Proportional to 8,754.68, 12,081.58 and 5,219.94

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Solution

The fourth proportional to 8,754.68, 12,081.58 and 5,219.94 is: 7,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.68 : 12,081.58 = 5,219.94 : x
  2. Step 2: Convert to fraction form
    8,754.68/12,081.58 = 5,219.94/x
  3. Step 3: Cross multiply
    8,754.68x = 12,081.58 × 5,219.94
  4. Step 4: Simplify right side
    8,754.68x = 63,065,122.71
  5. Step 5: Solve for x
    x = 63,065,122.71/8,754.68
  6. Step 6: Final answer
    x = 7,203.59

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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.