Home / 7,869.85-10,859.26-4,512.80

Finding the Fourth Proportional to 7,869.85, 10,859.26 and 4,512.80

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Solution

The fourth proportional to 7,869.85, 10,859.26 and 4,512.80 is: 6,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.85 : 10,859.26 = 4,512.80 : x
  2. Step 2: Convert to fraction form
    7,869.85/10,859.26 = 4,512.80/x
  3. Step 3: Cross multiply
    7,869.85x = 10,859.26 × 4,512.80
  4. Step 4: Simplify right side
    7,869.85x = 49,005,668.53
  5. Step 5: Solve for x
    x = 49,005,668.53/7,869.85
  6. Step 6: Final answer
    x = 6,227.01

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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.