Home / 8,754.40-12,084.96-5,218.84

Finding the Fourth Proportional to 8,754.40, 12,084.96 and 5,218.84

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Solution

The fourth proportional to 8,754.40, 12,084.96 and 5,218.84 is: 7,204.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.40 : 12,084.96 = 5,218.84 : x
  2. Step 2: Convert to fraction form
    8,754.40/12,084.96 = 5,218.84/x
  3. Step 3: Cross multiply
    8,754.40x = 12,084.96 × 5,218.84
  4. Step 4: Simplify right side
    8,754.40x = 63,069,472.65
  5. Step 5: Solve for x
    x = 63,069,472.65/8,754.40
  6. Step 6: Final answer
    x = 7,204.32

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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.