Home / 26,916.72-40,379.78-9,145.52

Finding the Fourth Proportional to 26,916.72, 40,379.78 and 9,145.52

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Solution

The fourth proportional to 26,916.72, 40,379.78 and 9,145.52 is: 13,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,916.72 : 40,379.78 = 9,145.52 : x
  2. Step 2: Convert to fraction form
    26,916.72/40,379.78 = 9,145.52/x
  3. Step 3: Cross multiply
    26,916.72x = 40,379.78 × 9,145.52
  4. Step 4: Simplify right side
    26,916.72x = 369,294,085.59
  5. Step 5: Solve for x
    x = 369,294,085.59/26,916.72
  6. Step 6: Final answer
    x = 13,719.88

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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.