Home / 10,916.58-15,061.17-6,666.54

Finding the Fourth Proportional to 10,916.58, 15,061.17 and 6,666.54

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Solution

The fourth proportional to 10,916.58, 15,061.17 and 6,666.54 is: 9,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.58 : 15,061.17 = 6,666.54 : x
  2. Step 2: Convert to fraction form
    10,916.58/15,061.17 = 6,666.54/x
  3. Step 3: Cross multiply
    10,916.58x = 15,061.17 × 6,666.54
  4. Step 4: Simplify right side
    10,916.58x = 100,405,892.25
  5. Step 5: Solve for x
    x = 100,405,892.25/10,916.58
  6. Step 6: Final answer
    x = 9,197.56

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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.