Home / 15,240.78-21,020.97-10,759.86

Finding the Fourth Proportional to 15,240.78, 21,020.97 and 10,759.86

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Solution

The fourth proportional to 15,240.78, 21,020.97 and 10,759.86 is: 14,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.78 : 21,020.97 = 10,759.86 : x
  2. Step 2: Convert to fraction form
    15,240.78/21,020.97 = 10,759.86/x
  3. Step 3: Cross multiply
    15,240.78x = 21,020.97 × 10,759.86
  4. Step 4: Simplify right side
    15,240.78x = 226,182,694.26
  5. Step 5: Solve for x
    x = 226,182,694.26/15,240.78
  6. Step 6: Final answer
    x = 14,840.62

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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.