Home / 10,161.45-15,213.42-6,454.49

Finding the Fourth Proportional to 10,161.45, 15,213.42 and 6,454.49

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Solution

The fourth proportional to 10,161.45, 15,213.42 and 6,454.49 is: 9,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.45 : 15,213.42 = 6,454.49 : x
  2. Step 2: Convert to fraction form
    10,161.45/15,213.42 = 6,454.49/x
  3. Step 3: Cross multiply
    10,161.45x = 15,213.42 × 6,454.49
  4. Step 4: Simplify right side
    10,161.45x = 98,194,791.19
  5. Step 5: Solve for x
    x = 98,194,791.19/10,161.45
  6. Step 6: Final answer
    x = 9,663.46

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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.