Home / 9,111.23-13,645.31-7,122.94

Finding the Fourth Proportional to 9,111.23, 13,645.31 and 7,122.94

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Solution

The fourth proportional to 9,111.23, 13,645.31 and 7,122.94 is: 10,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.23 : 13,645.31 = 7,122.94 : x
  2. Step 2: Convert to fraction form
    9,111.23/13,645.31 = 7,122.94/x
  3. Step 3: Cross multiply
    9,111.23x = 13,645.31 × 7,122.94
  4. Step 4: Simplify right side
    9,111.23x = 97,194,694.75
  5. Step 5: Solve for x
    x = 97,194,694.75/9,111.23
  6. Step 6: Final answer
    x = 10,667.57

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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.