Home / 12,152.07-18,228.11-9,382.79

Finding the Fourth Proportional to 12,152.07, 18,228.11 and 9,382.79

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Solution

The fourth proportional to 12,152.07, 18,228.11 and 9,382.79 is: 14,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.07 : 18,228.11 = 9,382.79 : x
  2. Step 2: Convert to fraction form
    12,152.07/18,228.11 = 9,382.79/x
  3. Step 3: Cross multiply
    12,152.07x = 18,228.11 × 9,382.79
  4. Step 4: Simplify right side
    12,152.07x = 171,030,528.23
  5. Step 5: Solve for x
    x = 171,030,528.23/12,152.07
  6. Step 6: Final answer
    x = 14,074.19

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Similar ratio
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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.