Home / 13,316.28-18,392.82-9,974.04

Finding the Fourth Proportional to 13,316.28, 18,392.82 and 9,974.04

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Solution

The fourth proportional to 13,316.28, 18,392.82 and 9,974.04 is: 13,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.28 : 18,392.82 = 9,974.04 : x
  2. Step 2: Convert to fraction form
    13,316.28/18,392.82 = 9,974.04/x
  3. Step 3: Cross multiply
    13,316.28x = 18,392.82 × 9,974.04
  4. Step 4: Simplify right side
    13,316.28x = 183,450,722.39
  5. Step 5: Solve for x
    x = 183,450,722.39/13,316.28
  6. Step 6: Final answer
    x = 13,776.42

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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.