Home / 15,016.44-20,711.43-13,316.94

Finding the Fourth Proportional to 15,016.44, 20,711.43 and 13,316.94

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Solution

The fourth proportional to 15,016.44, 20,711.43 and 13,316.94 is: 18,367.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.44 : 20,711.43 = 13,316.94 : x
  2. Step 2: Convert to fraction form
    15,016.44/20,711.43 = 13,316.94/x
  3. Step 3: Cross multiply
    15,016.44x = 20,711.43 × 13,316.94
  4. Step 4: Simplify right side
    15,016.44x = 275,812,870.62
  5. Step 5: Solve for x
    x = 275,812,870.62/15,016.44
  6. Step 6: Final answer
    x = 18,367.39

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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.