Home / 11,098.94-15,316.14-6,620.38

Finding the Fourth Proportional to 11,098.94, 15,316.14 and 6,620.38

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Solution

The fourth proportional to 11,098.94, 15,316.14 and 6,620.38 is: 9,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,098.94 : 15,316.14 = 6,620.38 : x
  2. Step 2: Convert to fraction form
    11,098.94/15,316.14 = 6,620.38/x
  3. Step 3: Cross multiply
    11,098.94x = 15,316.14 × 6,620.38
  4. Step 4: Simplify right side
    11,098.94x = 101,398,666.93
  5. Step 5: Solve for x
    x = 101,398,666.93/11,098.94
  6. Step 6: Final answer
    x = 9,135.89

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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.