Home / 19,182.18-28,765.71-9,318.54

Finding the Fourth Proportional to 19,182.18, 28,765.71 and 9,318.54

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Solution

The fourth proportional to 19,182.18, 28,765.71 and 9,318.54 is: 13,974.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,182.18 : 28,765.71 = 9,318.54 : x
  2. Step 2: Convert to fraction form
    19,182.18/28,765.71 = 9,318.54/x
  3. Step 3: Cross multiply
    19,182.18x = 28,765.71 × 9,318.54
  4. Step 4: Simplify right side
    19,182.18x = 268,054,419.26
  5. Step 5: Solve for x
    x = 268,054,419.26/19,182.18
  6. Step 6: Final answer
    x = 13,974.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.