Home / 13,042.85-17,999.10-7,074.50

Finding the Fourth Proportional to 13,042.85, 17,999.10 and 7,074.50

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Solution

The fourth proportional to 13,042.85, 17,999.10 and 7,074.50 is: 9,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.85 : 17,999.10 = 7,074.50 : x
  2. Step 2: Convert to fraction form
    13,042.85/17,999.10 = 7,074.50/x
  3. Step 3: Cross multiply
    13,042.85x = 17,999.10 × 7,074.50
  4. Step 4: Simplify right side
    13,042.85x = 127,334,542.95
  5. Step 5: Solve for x
    x = 127,334,542.95/13,042.85
  6. Step 6: Final answer
    x = 9,762.79

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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.