Home / 8,883.36-12,259.44-5,156.64

Finding the Fourth Proportional to 8,883.36, 12,259.44 and 5,156.64

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Solution

The fourth proportional to 8,883.36, 12,259.44 and 5,156.64 is: 7,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.36 : 12,259.44 = 5,156.64 : x
  2. Step 2: Convert to fraction form
    8,883.36/12,259.44 = 5,156.64/x
  3. Step 3: Cross multiply
    8,883.36x = 12,259.44 × 5,156.64
  4. Step 4: Simplify right side
    8,883.36x = 63,217,518.68
  5. Step 5: Solve for x
    x = 63,217,518.68/8,883.36
  6. Step 6: Final answer
    x = 7,116.40

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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.