Home / 15,022.48-20,724.60-9,717.88

Finding the Fourth Proportional to 15,022.48, 20,724.60 and 9,717.88

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Solution

The fourth proportional to 15,022.48, 20,724.60 and 9,717.88 is: 13,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.48 : 20,724.60 = 9,717.88 : x
  2. Step 2: Convert to fraction form
    15,022.48/20,724.60 = 9,717.88/x
  3. Step 3: Cross multiply
    15,022.48x = 20,724.60 × 9,717.88
  4. Step 4: Simplify right side
    15,022.48x = 201,399,175.85
  5. Step 5: Solve for x
    x = 201,399,175.85/15,022.48
  6. Step 6: Final answer
    x = 13,406.52

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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.