Home / 14,979.74-20,672.82-9,013.28

Finding the Fourth Proportional to 14,979.74, 20,672.82 and 9,013.28

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Solution

The fourth proportional to 14,979.74, 20,672.82 and 9,013.28 is: 12,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.74 : 20,672.82 = 9,013.28 : x
  2. Step 2: Convert to fraction form
    14,979.74/20,672.82 = 9,013.28/x
  3. Step 3: Cross multiply
    14,979.74x = 20,672.82 × 9,013.28
  4. Step 4: Simplify right side
    14,979.74x = 186,329,811.69
  5. Step 5: Solve for x
    x = 186,329,811.69/14,979.74
  6. Step 6: Final answer
    x = 12,438.79

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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.