Home / 13,641.04-18,824.66-7,672.72

Finding the Fourth Proportional to 13,641.04, 18,824.66 and 7,672.72

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Solution

The fourth proportional to 13,641.04, 18,824.66 and 7,672.72 is: 10,588.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.04 : 18,824.66 = 7,672.72 : x
  2. Step 2: Convert to fraction form
    13,641.04/18,824.66 = 7,672.72/x
  3. Step 3: Cross multiply
    13,641.04x = 18,824.66 × 7,672.72
  4. Step 4: Simplify right side
    13,641.04x = 144,436,345.28
  5. Step 5: Solve for x
    x = 144,436,345.28/13,641.04
  6. Step 6: Final answer
    x = 10,588.37

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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.