Home / 19,438.15-29,122.02-8,916.97

Finding the Fourth Proportional to 19,438.15, 29,122.02 and 8,916.97

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Solution

The fourth proportional to 19,438.15, 29,122.02 and 8,916.97 is: 13,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.15 : 29,122.02 = 8,916.97 : x
  2. Step 2: Convert to fraction form
    19,438.15/29,122.02 = 8,916.97/x
  3. Step 3: Cross multiply
    19,438.15x = 29,122.02 × 8,916.97
  4. Step 4: Simplify right side
    19,438.15x = 259,680,105.87
  5. Step 5: Solve for x
    x = 259,680,105.87/19,438.15
  6. Step 6: Final answer
    x = 13,359.30

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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.