Home / 7,701.20-10,627.70-4,513.78

Finding the Fourth Proportional to 7,701.20, 10,627.70 and 4,513.78

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Solution

The fourth proportional to 7,701.20, 10,627.70 and 4,513.78 is: 6,229.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,701.20 : 10,627.70 = 4,513.78 : x
  2. Step 2: Convert to fraction form
    7,701.20/10,627.70 = 4,513.78/x
  3. Step 3: Cross multiply
    7,701.20x = 10,627.70 × 4,513.78
  4. Step 4: Simplify right side
    7,701.20x = 47,971,099.71
  5. Step 5: Solve for x
    x = 47,971,099.71/7,701.20
  6. Step 6: Final answer
    x = 6,229.04

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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.