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Finding the Fourth Proportional to 8,567.56, 11,833.86 and 7,388.20

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Solution

The fourth proportional to 8,567.56, 11,833.86 and 7,388.20 is: 10,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.56 : 11,833.86 = 7,388.20 : x
  2. Step 2: Convert to fraction form
    8,567.56/11,833.86 = 7,388.20/x
  3. Step 3: Cross multiply
    8,567.56x = 11,833.86 × 7,388.20
  4. Step 4: Simplify right side
    8,567.56x = 87,430,924.45
  5. Step 5: Solve for x
    x = 87,430,924.45/8,567.56
  6. Step 6: Final answer
    x = 10,204.88

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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.