Home / 7,407.28-10,223.20-4,262.80

Finding the Fourth Proportional to 7,407.28, 10,223.20 and 4,262.80

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Solution

The fourth proportional to 7,407.28, 10,223.20 and 4,262.80 is: 5,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.28 : 10,223.20 = 4,262.80 : x
  2. Step 2: Convert to fraction form
    7,407.28/10,223.20 = 4,262.80/x
  3. Step 3: Cross multiply
    7,407.28x = 10,223.20 × 4,262.80
  4. Step 4: Simplify right side
    7,407.28x = 43,579,456.96
  5. Step 5: Solve for x
    x = 43,579,456.96/7,407.28
  6. Step 6: Final answer
    x = 5,883.33

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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.