Home / 12,326.28-18,502.57-5,309.76

Finding the Fourth Proportional to 12,326.28, 18,502.57 and 5,309.76

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Solution

The fourth proportional to 12,326.28, 18,502.57 and 5,309.76 is: 7,970.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.28 : 18,502.57 = 5,309.76 : x
  2. Step 2: Convert to fraction form
    12,326.28/18,502.57 = 5,309.76/x
  3. Step 3: Cross multiply
    12,326.28x = 18,502.57 × 5,309.76
  4. Step 4: Simplify right side
    12,326.28x = 98,244,282.11
  5. Step 5: Solve for x
    x = 98,244,282.11/12,326.28
  6. Step 6: Final answer
    x = 7,970.31

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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.