Home / 10,179.44-14,031.12-7,190.48

Finding the Fourth Proportional to 10,179.44, 14,031.12 and 7,190.48

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Solution

The fourth proportional to 10,179.44, 14,031.12 and 7,190.48 is: 9,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.44 : 14,031.12 = 7,190.48 : x
  2. Step 2: Convert to fraction form
    10,179.44/14,031.12 = 7,190.48/x
  3. Step 3: Cross multiply
    10,179.44x = 14,031.12 × 7,190.48
  4. Step 4: Simplify right side
    10,179.44x = 100,890,487.74
  5. Step 5: Solve for x
    x = 100,890,487.74/10,179.44
  6. Step 6: Final answer
    x = 9,911.20

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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.