Home / 14,515.34-20,012.81-12,359.79

Finding the Fourth Proportional to 14,515.34, 20,012.81 and 12,359.79

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Solution

The fourth proportional to 14,515.34, 20,012.81 and 12,359.79 is: 17,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.34 : 20,012.81 = 12,359.79 : x
  2. Step 2: Convert to fraction form
    14,515.34/20,012.81 = 12,359.79/x
  3. Step 3: Cross multiply
    14,515.34x = 20,012.81 × 12,359.79
  4. Step 4: Simplify right side
    14,515.34x = 247,354,067.11
  5. Step 5: Solve for x
    x = 247,354,067.11/14,515.34
  6. Step 6: Final answer
    x = 17,040.88

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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.