Home / 14,729.78-20,327.33-8,015.69

Finding the Fourth Proportional to 14,729.78, 20,327.33 and 8,015.69

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Solution

The fourth proportional to 14,729.78, 20,327.33 and 8,015.69 is: 11,061.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729.78 : 20,327.33 = 8,015.69 : x
  2. Step 2: Convert to fraction form
    14,729.78/20,327.33 = 8,015.69/x
  3. Step 3: Cross multiply
    14,729.78x = 20,327.33 × 8,015.69
  4. Step 4: Simplify right side
    14,729.78x = 162,937,494.21
  5. Step 5: Solve for x
    x = 162,937,494.21/14,729.78
  6. Step 6: Final answer
    x = 11,061.78

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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.