Home / 15,016.86-20,723.06-8,302.61

Finding the Fourth Proportional to 15,016.86, 20,723.06 and 8,302.61

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Solution

The fourth proportional to 15,016.86, 20,723.06 and 8,302.61 is: 11,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.86 : 20,723.06 = 8,302.61 : x
  2. Step 2: Convert to fraction form
    15,016.86/20,723.06 = 8,302.61/x
  3. Step 3: Cross multiply
    15,016.86x = 20,723.06 × 8,302.61
  4. Step 4: Simplify right side
    15,016.86x = 172,055,340.06
  5. Step 5: Solve for x
    x = 172,055,340.06/15,016.86
  6. Step 6: Final answer
    x = 11,457.48

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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.