Home / 13,042.98-17,999.18-7,074.78

Finding the Fourth Proportional to 13,042.98, 17,999.18 and 7,074.78

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Solution

The fourth proportional to 13,042.98, 17,999.18 and 7,074.78 is: 9,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.98 : 17,999.18 = 7,074.78 : x
  2. Step 2: Convert to fraction form
    13,042.98/17,999.18 = 7,074.78/x
  3. Step 3: Cross multiply
    13,042.98x = 17,999.18 × 7,074.78
  4. Step 4: Simplify right side
    13,042.98x = 127,340,238.68
  5. Step 5: Solve for x
    x = 127,340,238.68/13,042.98
  6. Step 6: Final answer
    x = 9,763.12

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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.