Home / 13,184.38-18,194.25-7,215.90

Finding the Fourth Proportional to 13,184.38, 18,194.25 and 7,215.90

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Solution

The fourth proportional to 13,184.38, 18,194.25 and 7,215.90 is: 9,957.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.38 : 18,194.25 = 7,215.90 : x
  2. Step 2: Convert to fraction form
    13,184.38/18,194.25 = 7,215.90/x
  3. Step 3: Cross multiply
    13,184.38x = 18,194.25 × 7,215.90
  4. Step 4: Simplify right side
    13,184.38x = 131,287,888.58
  5. Step 5: Solve for x
    x = 131,287,888.58/13,184.38
  6. Step 6: Final answer
    x = 9,957.84

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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.