Home / 13,352.28-18,412.20-11,470

Finding the Fourth Proportional to 13,352.28, 18,412.20 and 11,470

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Solution

The fourth proportional to 13,352.28, 18,412.20 and 11,470 is: 15,816.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.28 : 18,412.20 = 11,470 : x
  2. Step 2: Convert to fraction form
    13,352.28/18,412.20 = 11,470/x
  3. Step 3: Cross multiply
    13,352.28x = 18,412.20 × 11,470
  4. Step 4: Simplify right side
    13,352.28x = 211,187,934
  5. Step 5: Solve for x
    x = 211,187,934/13,352.28
  6. Step 6: Final answer
    x = 15,816.62

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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.