Home / 11,427.50-17,143.77-4,859.30

Finding the Fourth Proportional to 11,427.50, 17,143.77 and 4,859.30

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Solution

The fourth proportional to 11,427.50, 17,143.77 and 4,859.30 is: 7,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.50 : 17,143.77 = 4,859.30 : x
  2. Step 2: Convert to fraction form
    11,427.50/17,143.77 = 4,859.30/x
  3. Step 3: Cross multiply
    11,427.50x = 17,143.77 × 4,859.30
  4. Step 4: Simplify right side
    11,427.50x = 83,306,721.56
  5. Step 5: Solve for x
    x = 83,306,721.56/11,427.50
  6. Step 6: Final answer
    x = 7,290.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.