Home / 10,916.19-15,067.55-9,439.97

Finding the Fourth Proportional to 10,916.19, 15,067.55 and 9,439.97

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Solution

The fourth proportional to 10,916.19, 15,067.55 and 9,439.97 is: 13,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.19 : 15,067.55 = 9,439.97 : x
  2. Step 2: Convert to fraction form
    10,916.19/15,067.55 = 9,439.97/x
  3. Step 3: Cross multiply
    10,916.19x = 15,067.55 × 9,439.97
  4. Step 4: Simplify right side
    10,916.19x = 142,237,168.24
  5. Step 5: Solve for x
    x = 142,237,168.24/10,916.19
  6. Step 6: Final answer
    x = 13,029.93

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1.5x scale

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.