Home / 8,812.98-12,162.39-5,229.03

Finding the Fourth Proportional to 8,812.98, 12,162.39 and 5,229.03

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Solution

The fourth proportional to 8,812.98, 12,162.39 and 5,229.03 is: 7,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.98 : 12,162.39 = 5,229.03 : x
  2. Step 2: Convert to fraction form
    8,812.98/12,162.39 = 5,229.03/x
  3. Step 3: Cross multiply
    8,812.98x = 12,162.39 × 5,229.03
  4. Step 4: Simplify right side
    8,812.98x = 63,597,502.18
  5. Step 5: Solve for x
    x = 63,597,502.18/8,812.98
  6. Step 6: Final answer
    x = 7,216.34

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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.