Home / 8,855.04-12,221.28-5,319.84

Finding the Fourth Proportional to 8,855.04, 12,221.28 and 5,319.84

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Solution

The fourth proportional to 8,855.04, 12,221.28 and 5,319.84 is: 7,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.04 : 12,221.28 = 5,319.84 : x
  2. Step 2: Convert to fraction form
    8,855.04/12,221.28 = 5,319.84/x
  3. Step 3: Cross multiply
    8,855.04x = 12,221.28 × 5,319.84
  4. Step 4: Simplify right side
    8,855.04x = 65,015,254.20
  5. Step 5: Solve for x
    x = 65,015,254.20/8,855.04
  6. Step 6: Final answer
    x = 7,342.18

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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.