Home / 8,858.36-12,224.22-5,717.72

Finding the Fourth Proportional to 8,858.36, 12,224.22 and 5,717.72

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Solution

The fourth proportional to 8,858.36, 12,224.22 and 5,717.72 is: 7,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.36 : 12,224.22 = 5,717.72 : x
  2. Step 2: Convert to fraction form
    8,858.36/12,224.22 = 5,717.72/x
  3. Step 3: Cross multiply
    8,858.36x = 12,224.22 × 5,717.72
  4. Step 4: Simplify right side
    8,858.36x = 69,894,667.18
  5. Step 5: Solve for x
    x = 69,894,667.18/8,858.36
  6. Step 6: Final answer
    x = 7,890.25

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Half scale
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Double scale
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Similar ratio
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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.