Home / 7,916.07-11,870.13-2,649.27

Finding the Fourth Proportional to 7,916.07, 11,870.13 and 2,649.27

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Solution

The fourth proportional to 7,916.07, 11,870.13 and 2,649.27 is: 3,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.07 : 11,870.13 = 2,649.27 : x
  2. Step 2: Convert to fraction form
    7,916.07/11,870.13 = 2,649.27/x
  3. Step 3: Cross multiply
    7,916.07x = 11,870.13 × 2,649.27
  4. Step 4: Simplify right side
    7,916.07x = 31,447,179.31
  5. Step 5: Solve for x
    x = 31,447,179.31/7,916.07
  6. Step 6: Final answer
    x = 3,972.57

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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.