Home / 15,042.71-20,758.26-8,327.86

Finding the Fourth Proportional to 15,042.71, 20,758.26 and 8,327.86

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Solution

The fourth proportional to 15,042.71, 20,758.26 and 8,327.86 is: 11,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,042.71 : 20,758.26 = 8,327.86 : x
  2. Step 2: Convert to fraction form
    15,042.71/20,758.26 = 8,327.86/x
  3. Step 3: Cross multiply
    15,042.71x = 20,758.26 × 8,327.86
  4. Step 4: Simplify right side
    15,042.71x = 172,871,883.12
  5. Step 5: Solve for x
    x = 172,871,883.12/15,042.71
  6. Step 6: Final answer
    x = 11,492.07

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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.