Home / 12,436.08-17,158.68-7,398.96

Finding the Fourth Proportional to 12,436.08, 17,158.68 and 7,398.96

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Solution

The fourth proportional to 12,436.08, 17,158.68 and 7,398.96 is: 10,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.08 : 17,158.68 = 7,398.96 : x
  2. Step 2: Convert to fraction form
    12,436.08/17,158.68 = 7,398.96/x
  3. Step 3: Cross multiply
    12,436.08x = 17,158.68 × 7,398.96
  4. Step 4: Simplify right side
    12,436.08x = 126,956,386.97
  5. Step 5: Solve for x
    x = 126,956,386.97/12,436.08
  6. Step 6: Final answer
    x = 10,208.71

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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.