Home / 8,355.20-11,532.16-5,523.12

Finding the Fourth Proportional to 8,355.20, 11,532.16 and 5,523.12

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Solution

The fourth proportional to 8,355.20, 11,532.16 and 5,523.12 is: 7,623.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.20 : 11,532.16 = 5,523.12 : x
  2. Step 2: Convert to fraction form
    8,355.20/11,532.16 = 5,523.12/x
  3. Step 3: Cross multiply
    8,355.20x = 11,532.16 × 5,523.12
  4. Step 4: Simplify right side
    8,355.20x = 63,693,503.54
  5. Step 5: Solve for x
    x = 63,693,503.54/8,355.20
  6. Step 6: Final answer
    x = 7,623.22

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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.