Home / 8,807.78-13,213.40-3,261.17

Finding the Fourth Proportional to 8,807.78, 13,213.40 and 3,261.17

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Solution

The fourth proportional to 8,807.78, 13,213.40 and 3,261.17 is: 4,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.78 : 13,213.40 = 3,261.17 : x
  2. Step 2: Convert to fraction form
    8,807.78/13,213.40 = 3,261.17/x
  3. Step 3: Cross multiply
    8,807.78x = 13,213.40 × 3,261.17
  4. Step 4: Simplify right side
    8,807.78x = 43,091,143.68
  5. Step 5: Solve for x
    x = 43,091,143.68/8,807.78
  6. Step 6: Final answer
    x = 4,892.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.