Home / 18,916.38-28,381.05-7,232.94

Finding the Fourth Proportional to 18,916.38, 28,381.05 and 7,232.94

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Solution

The fourth proportional to 18,916.38, 28,381.05 and 7,232.94 is: 10,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.38 : 28,381.05 = 7,232.94 : x
  2. Step 2: Convert to fraction form
    18,916.38/28,381.05 = 7,232.94/x
  3. Step 3: Cross multiply
    18,916.38x = 28,381.05 × 7,232.94
  4. Step 4: Simplify right side
    18,916.38x = 205,278,431.79
  5. Step 5: Solve for x
    x = 205,278,431.79/18,916.38
  6. Step 6: Final answer
    x = 10,851.89

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1.5x scale

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.