Home / 13,564.62-18,721.89-9,327.18

Finding the Fourth Proportional to 13,564.62, 18,721.89 and 9,327.18

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Solution

The fourth proportional to 13,564.62, 18,721.89 and 9,327.18 is: 12,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.62 : 18,721.89 = 9,327.18 : x
  2. Step 2: Convert to fraction form
    13,564.62/18,721.89 = 9,327.18/x
  3. Step 3: Cross multiply
    13,564.62x = 18,721.89 × 9,327.18
  4. Step 4: Simplify right side
    13,564.62x = 174,622,437.97
  5. Step 5: Solve for x
    x = 174,622,437.97/13,564.62
  6. Step 6: Final answer
    x = 12,873.37

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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.