Home / 14,387.79-21,557.92-6,579.39

Finding the Fourth Proportional to 14,387.79, 21,557.92 and 6,579.39

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Solution

The fourth proportional to 14,387.79, 21,557.92 and 6,579.39 is: 9,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.79 : 21,557.92 = 6,579.39 : x
  2. Step 2: Convert to fraction form
    14,387.79/21,557.92 = 6,579.39/x
  3. Step 3: Cross multiply
    14,387.79x = 21,557.92 × 6,579.39
  4. Step 4: Simplify right side
    14,387.79x = 141,837,963.27
  5. Step 5: Solve for x
    x = 141,837,963.27/14,387.79
  6. Step 6: Final answer
    x = 9,858.22

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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.