Home / 8,220.81-12,330.05-2,674.23

Finding the Fourth Proportional to 8,220.81, 12,330.05 and 2,674.23

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Solution

The fourth proportional to 8,220.81, 12,330.05 and 2,674.23 is: 4,010.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.81 : 12,330.05 = 2,674.23 : x
  2. Step 2: Convert to fraction form
    8,220.81/12,330.05 = 2,674.23/x
  3. Step 3: Cross multiply
    8,220.81x = 12,330.05 × 2,674.23
  4. Step 4: Simplify right side
    8,220.81x = 32,973,389.61
  5. Step 5: Solve for x
    x = 32,973,389.61/8,220.81
  6. Step 6: Final answer
    x = 4,010.97

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Double scale
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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.