Home / 18,415.13-27,624.51-7,319.34

Finding the Fourth Proportional to 18,415.13, 27,624.51 and 7,319.34

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Solution

The fourth proportional to 18,415.13, 27,624.51 and 7,319.34 is: 10,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.13 : 27,624.51 = 7,319.34 : x
  2. Step 2: Convert to fraction form
    18,415.13/27,624.51 = 7,319.34/x
  3. Step 3: Cross multiply
    18,415.13x = 27,624.51 × 7,319.34
  4. Step 4: Simplify right side
    18,415.13x = 202,193,181.02
  5. Step 5: Solve for x
    x = 202,193,181.02/18,415.13
  6. Step 6: Final answer
    x = 10,979.73

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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.