Home / 9,139.23-13,618.94-8,841.56

Finding the Fourth Proportional to 9,139.23, 13,618.94 and 8,841.56

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Solution

The fourth proportional to 9,139.23, 13,618.94 and 8,841.56 is: 13,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.23 : 13,618.94 = 8,841.56 : x
  2. Step 2: Convert to fraction form
    9,139.23/13,618.94 = 8,841.56/x
  3. Step 3: Cross multiply
    9,139.23x = 13,618.94 × 8,841.56
  4. Step 4: Simplify right side
    9,139.23x = 120,412,562.84
  5. Step 5: Solve for x
    x = 120,412,562.84/9,139.23
  6. Step 6: Final answer
    x = 13,175.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.