Home / 15,016.40-20,722.28-10,717.36

Finding the Fourth Proportional to 15,016.40, 20,722.28 and 10,717.36

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Solution

The fourth proportional to 15,016.40, 20,722.28 and 10,717.36 is: 14,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.40 : 20,722.28 = 10,717.36 : x
  2. Step 2: Convert to fraction form
    15,016.40/20,722.28 = 10,717.36/x
  3. Step 3: Cross multiply
    15,016.40x = 20,722.28 × 10,717.36
  4. Step 4: Simplify right side
    15,016.40x = 222,088,134.78
  5. Step 5: Solve for x
    x = 222,088,134.78/15,016.40
  6. Step 6: Final answer
    x = 14,789.71

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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.