Home / 11,168.28-15,407.42-7,187.94

Finding the Fourth Proportional to 11,168.28, 15,407.42 and 7,187.94

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Solution

The fourth proportional to 11,168.28, 15,407.42 and 7,187.94 is: 9,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.28 : 15,407.42 = 7,187.94 : x
  2. Step 2: Convert to fraction form
    11,168.28/15,407.42 = 7,187.94/x
  3. Step 3: Cross multiply
    11,168.28x = 15,407.42 × 7,187.94
  4. Step 4: Simplify right side
    11,168.28x = 110,747,574.58
  5. Step 5: Solve for x
    x = 110,747,574.58/11,168.28
  6. Step 6: Final answer
    x = 9,916.26

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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.