Home / 12,656.28-18,984.36-5,256.60

Finding the Fourth Proportional to 12,656.28, 18,984.36 and 5,256.60

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Solution

The fourth proportional to 12,656.28, 18,984.36 and 5,256.60 is: 7,884.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.28 : 18,984.36 = 5,256.60 : x
  2. Step 2: Convert to fraction form
    12,656.28/18,984.36 = 5,256.60/x
  3. Step 3: Cross multiply
    12,656.28x = 18,984.36 × 5,256.60
  4. Step 4: Simplify right side
    12,656.28x = 99,793,186.78
  5. Step 5: Solve for x
    x = 99,793,186.78/12,656.28
  6. Step 6: Final answer
    x = 7,884.88

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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.