Home / 7,871.50-10,862.45-4,334.73

Finding the Fourth Proportional to 7,871.50, 10,862.45 and 4,334.73

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Solution

The fourth proportional to 7,871.50, 10,862.45 and 4,334.73 is: 5,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.50 : 10,862.45 = 4,334.73 : x
  2. Step 2: Convert to fraction form
    7,871.50/10,862.45 = 4,334.73/x
  3. Step 3: Cross multiply
    7,871.50x = 10,862.45 × 4,334.73
  4. Step 4: Simplify right side
    7,871.50x = 47,085,787.89
  5. Step 5: Solve for x
    x = 47,085,787.89/7,871.50
  6. Step 6: Final answer
    x = 5,981.81

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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.