Home / 14,006.79-21,016.56-5,242.38

Finding the Fourth Proportional to 14,006.79, 21,016.56 and 5,242.38

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Solution

The fourth proportional to 14,006.79, 21,016.56 and 5,242.38 is: 7,865.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.79 : 21,016.56 = 5,242.38 : x
  2. Step 2: Convert to fraction form
    14,006.79/21,016.56 = 5,242.38/x
  3. Step 3: Cross multiply
    14,006.79x = 21,016.56 × 5,242.38
  4. Step 4: Simplify right side
    14,006.79x = 110,176,767.60
  5. Step 5: Solve for x
    x = 110,176,767.60/14,006.79
  6. Step 6: Final answer
    x = 7,865.96

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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.