Home / 10,231.47-14,115.43-5,754.20

Finding the Fourth Proportional to 10,231.47, 14,115.43 and 5,754.20

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Solution

The fourth proportional to 10,231.47, 14,115.43 and 5,754.20 is: 7,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.47 : 14,115.43 = 5,754.20 : x
  2. Step 2: Convert to fraction form
    10,231.47/14,115.43 = 5,754.20/x
  3. Step 3: Cross multiply
    10,231.47x = 14,115.43 × 5,754.20
  4. Step 4: Simplify right side
    10,231.47x = 81,222,943.92
  5. Step 5: Solve for x
    x = 81,222,943.92/10,231.47
  6. Step 6: Final answer
    x = 7,938.54

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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.