Home / 10,439.57-15,659.31-2,648.36

Finding the Fourth Proportional to 10,439.57, 15,659.31 and 2,648.36

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Solution

The fourth proportional to 10,439.57, 15,659.31 and 2,648.36 is: 3,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.57 : 15,659.31 = 2,648.36 : x
  2. Step 2: Convert to fraction form
    10,439.57/15,659.31 = 2,648.36/x
  3. Step 3: Cross multiply
    10,439.57x = 15,659.31 × 2,648.36
  4. Step 4: Simplify right side
    10,439.57x = 41,471,490.23
  5. Step 5: Solve for x
    x = 41,471,490.23/10,439.57
  6. Step 6: Final answer
    x = 3,972.53

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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.