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Finding the Fourth Proportional to 8,538.08, 12,733.36 and 8,339.36

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Solution

The fourth proportional to 8,538.08, 12,733.36 and 8,339.36 is: 12,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.08 : 12,733.36 = 8,339.36 : x
  2. Step 2: Convert to fraction form
    8,538.08/12,733.36 = 8,339.36/x
  3. Step 3: Cross multiply
    8,538.08x = 12,733.36 × 8,339.36
  4. Step 4: Simplify right side
    8,538.08x = 106,188,073.05
  5. Step 5: Solve for x
    x = 106,188,073.05/8,538.08
  6. Step 6: Final answer
    x = 12,437.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.