Home / 11,122.38-15,346.53-6,404.94

Finding the Fourth Proportional to 11,122.38, 15,346.53 and 6,404.94

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Solution

The fourth proportional to 11,122.38, 15,346.53 and 6,404.94 is: 8,837.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.38 : 15,346.53 = 6,404.94 : x
  2. Step 2: Convert to fraction form
    11,122.38/15,346.53 = 6,404.94/x
  3. Step 3: Cross multiply
    11,122.38x = 15,346.53 × 6,404.94
  4. Step 4: Simplify right side
    11,122.38x = 98,293,603.86
  5. Step 5: Solve for x
    x = 98,293,603.86/11,122.38
  6. Step 6: Final answer
    x = 8,837.46

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Half scale
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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.