Home / 18,366.21-27,541.13-5,215.52

Finding the Fourth Proportional to 18,366.21, 27,541.13 and 5,215.52

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Solution

The fourth proportional to 18,366.21, 27,541.13 and 5,215.52 is: 7,820.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.21 : 27,541.13 = 5,215.52 : x
  2. Step 2: Convert to fraction form
    18,366.21/27,541.13 = 5,215.52/x
  3. Step 3: Cross multiply
    18,366.21x = 27,541.13 × 5,215.52
  4. Step 4: Simplify right side
    18,366.21x = 143,641,357.11
  5. Step 5: Solve for x
    x = 143,641,357.11/18,366.21
  6. Step 6: Final answer
    x = 7,820.96

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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.