Home / 8,340.80-11,505.30-5,508.18

Finding the Fourth Proportional to 8,340.80, 11,505.30 and 5,508.18

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Solution

The fourth proportional to 8,340.80, 11,505.30 and 5,508.18 is: 7,597.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.80 : 11,505.30 = 5,508.18 : x
  2. Step 2: Convert to fraction form
    8,340.80/11,505.30 = 5,508.18/x
  3. Step 3: Cross multiply
    8,340.80x = 11,505.30 × 5,508.18
  4. Step 4: Simplify right side
    8,340.80x = 63,373,263.35
  5. Step 5: Solve for x
    x = 63,373,263.35/8,340.80
  6. Step 6: Final answer
    x = 7,597.98

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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.