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Finding the Fourth Proportional to 8,339.88, 11,484.54 and 7,455.36

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Solution

The fourth proportional to 8,339.88, 11,484.54 and 7,455.36 is: 10,266.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.88 : 11,484.54 = 7,455.36 : x
  2. Step 2: Convert to fraction form
    8,339.88/11,484.54 = 7,455.36/x
  3. Step 3: Cross multiply
    8,339.88x = 11,484.54 × 7,455.36
  4. Step 4: Simplify right side
    8,339.88x = 85,621,380.13
  5. Step 5: Solve for x
    x = 85,621,380.13/8,339.88
  6. Step 6: Final answer
    x = 10,266.50

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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.