Home / 10,916.29-15,063.96-6,442.66

Finding the Fourth Proportional to 10,916.29, 15,063.96 and 6,442.66

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Solution

The fourth proportional to 10,916.29, 15,063.96 and 6,442.66 is: 8,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.29 : 15,063.96 = 6,442.66 : x
  2. Step 2: Convert to fraction form
    10,916.29/15,063.96 = 6,442.66/x
  3. Step 3: Cross multiply
    10,916.29x = 15,063.96 × 6,442.66
  4. Step 4: Simplify right side
    10,916.29x = 97,051,972.53
  5. Step 5: Solve for x
    x = 97,051,972.53/10,916.29
  6. Step 6: Final answer
    x = 8,890.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.