Home / 10,516.71-15,779.85-3,943.41

Finding the Fourth Proportional to 10,516.71, 15,779.85 and 3,943.41

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Solution

The fourth proportional to 10,516.71, 15,779.85 and 3,943.41 is: 5,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.71 : 15,779.85 = 3,943.41 : x
  2. Step 2: Convert to fraction form
    10,516.71/15,779.85 = 3,943.41/x
  3. Step 3: Cross multiply
    10,516.71x = 15,779.85 × 3,943.41
  4. Step 4: Simplify right side
    10,516.71x = 62,226,418.29
  5. Step 5: Solve for x
    x = 62,226,418.29/10,516.71
  6. Step 6: Final answer
    x = 5,916.91

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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.