Home / 15,016.08-20,722.32-8,301.60

Finding the Fourth Proportional to 15,016.08, 20,722.32 and 8,301.60

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Solution

The fourth proportional to 15,016.08, 20,722.32 and 8,301.60 is: 11,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.08 : 20,722.32 = 8,301.60 : x
  2. Step 2: Convert to fraction form
    15,016.08/20,722.32 = 8,301.60/x
  3. Step 3: Cross multiply
    15,016.08x = 20,722.32 × 8,301.60
  4. Step 4: Simplify right side
    15,016.08x = 172,028,411.71
  5. Step 5: Solve for x
    x = 172,028,411.71/15,016.08
  6. Step 6: Final answer
    x = 11,456.28

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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.