Home / 10,385.82-15,574.48-5,116.97

Finding the Fourth Proportional to 10,385.82, 15,574.48 and 5,116.97

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Solution

The fourth proportional to 10,385.82, 15,574.48 and 5,116.97 is: 7,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.82 : 15,574.48 = 5,116.97 : x
  2. Step 2: Convert to fraction form
    10,385.82/15,574.48 = 5,116.97/x
  3. Step 3: Cross multiply
    10,385.82x = 15,574.48 × 5,116.97
  4. Step 4: Simplify right side
    10,385.82x = 79,694,173.07
  5. Step 5: Solve for x
    x = 79,694,173.07/10,385.82
  6. Step 6: Final answer
    x = 7,673.36

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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.