Home / 7,872.12-10,862.91-4,334.85

Finding the Fourth Proportional to 7,872.12, 10,862.91 and 4,334.85

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Solution

The fourth proportional to 7,872.12, 10,862.91 and 4,334.85 is: 5,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.12 : 10,862.91 = 4,334.85 : x
  2. Step 2: Convert to fraction form
    7,872.12/10,862.91 = 4,334.85/x
  3. Step 3: Cross multiply
    7,872.12x = 10,862.91 × 4,334.85
  4. Step 4: Simplify right side
    7,872.12x = 47,089,085.41
  5. Step 5: Solve for x
    x = 47,089,085.41/7,872.12
  6. Step 6: Final answer
    x = 5,981.75

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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.