Home / 7,407.50-10,220.72-4,422.87

Finding the Fourth Proportional to 7,407.50, 10,220.72 and 4,422.87

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Solution

The fourth proportional to 7,407.50, 10,220.72 and 4,422.87 is: 6,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.50 : 10,220.72 = 4,422.87 : x
  2. Step 2: Convert to fraction form
    7,407.50/10,220.72 = 4,422.87/x
  3. Step 3: Cross multiply
    7,407.50x = 10,220.72 × 4,422.87
  4. Step 4: Simplify right side
    7,407.50x = 45,204,893.75
  5. Step 5: Solve for x
    x = 45,204,893.75/7,407.50
  6. Step 6: Final answer
    x = 6,102.59

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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.