Home / 8,220.24-12,331.02-3,287.18

Finding the Fourth Proportional to 8,220.24, 12,331.02 and 3,287.18

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Solution

The fourth proportional to 8,220.24, 12,331.02 and 3,287.18 is: 4,931.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.24 : 12,331.02 = 3,287.18 : x
  2. Step 2: Convert to fraction form
    8,220.24/12,331.02 = 3,287.18/x
  3. Step 3: Cross multiply
    8,220.24x = 12,331.02 × 3,287.18
  4. Step 4: Simplify right side
    8,220.24x = 40,534,282.32
  5. Step 5: Solve for x
    x = 40,534,282.32/8,220.24
  6. Step 6: Final answer
    x = 4,931.03

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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.