Home / 15,760.68-21,759.87-9,800.46

Finding the Fourth Proportional to 15,760.68, 21,759.87 and 9,800.46

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Solution

The fourth proportional to 15,760.68, 21,759.87 and 9,800.46 is: 13,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,760.68 : 21,759.87 = 9,800.46 : x
  2. Step 2: Convert to fraction form
    15,760.68/21,759.87 = 9,800.46/x
  3. Step 3: Cross multiply
    15,760.68x = 21,759.87 × 9,800.46
  4. Step 4: Simplify right side
    15,760.68x = 213,256,735.54
  5. Step 5: Solve for x
    x = 213,256,735.54/15,760.68
  6. Step 6: Final answer
    x = 13,530.93

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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.