Home / 13,579.71-20,356.93-5,265.15

Finding the Fourth Proportional to 13,579.71, 20,356.93 and 5,265.15

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Solution

The fourth proportional to 13,579.71, 20,356.93 and 5,265.15 is: 7,892.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.71 : 20,356.93 = 5,265.15 : x
  2. Step 2: Convert to fraction form
    13,579.71/20,356.93 = 5,265.15/x
  3. Step 3: Cross multiply
    13,579.71x = 20,356.93 × 5,265.15
  4. Step 4: Simplify right side
    13,579.71x = 107,182,175.04
  5. Step 5: Solve for x
    x = 107,182,175.04/13,579.71
  6. Step 6: Final answer
    x = 7,892.82

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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.