Home / 8,220.80-12,332.40-2,673.20

Finding the Fourth Proportional to 8,220.80, 12,332.40 and 2,673.20

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Solution

The fourth proportional to 8,220.80, 12,332.40 and 2,673.20 is: 4,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.80 : 12,332.40 = 2,673.20 : x
  2. Step 2: Convert to fraction form
    8,220.80/12,332.40 = 2,673.20/x
  3. Step 3: Cross multiply
    8,220.80x = 12,332.40 × 2,673.20
  4. Step 4: Simplify right side
    8,220.80x = 32,966,971.68
  5. Step 5: Solve for x
    x = 32,966,971.68/8,220.80
  6. Step 6: Final answer
    x = 4,010.19

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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.