Home / 8,853.20-13,280.76-3,309.20

Finding the Fourth Proportional to 8,853.20, 13,280.76 and 3,309.20

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Solution

The fourth proportional to 8,853.20, 13,280.76 and 3,309.20 is: 4,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.20 : 13,280.76 = 3,309.20 : x
  2. Step 2: Convert to fraction form
    8,853.20/13,280.76 = 3,309.20/x
  3. Step 3: Cross multiply
    8,853.20x = 13,280.76 × 3,309.20
  4. Step 4: Simplify right side
    8,853.20x = 43,948,690.99
  5. Step 5: Solve for x
    x = 43,948,690.99/8,853.20
  6. Step 6: Final answer
    x = 4,964.16

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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.