Home / 13,031.82-17,969.65-9,680.85

Finding the Fourth Proportional to 13,031.82, 17,969.65 and 9,680.85

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Solution

The fourth proportional to 13,031.82, 17,969.65 and 9,680.85 is: 13,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.82 : 17,969.65 = 9,680.85 : x
  2. Step 2: Convert to fraction form
    13,031.82/17,969.65 = 9,680.85/x
  3. Step 3: Cross multiply
    13,031.82x = 17,969.65 × 9,680.85
  4. Step 4: Simplify right side
    13,031.82x = 173,961,462.00
  5. Step 5: Solve for x
    x = 173,961,462.00/13,031.82
  6. Step 6: Final answer
    x = 13,348.98

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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.