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Finding the Fourth Proportional to 8,339.32, 12,508.74 and 2,099.32

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Solution

The fourth proportional to 8,339.32, 12,508.74 and 2,099.32 is: 3,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.32 : 12,508.74 = 2,099.32 : x
  2. Step 2: Convert to fraction form
    8,339.32/12,508.74 = 2,099.32/x
  3. Step 3: Cross multiply
    8,339.32x = 12,508.74 × 2,099.32
  4. Step 4: Simplify right side
    8,339.32x = 26,259,848.06
  5. Step 5: Solve for x
    x = 26,259,848.06/8,339.32
  6. Step 6: Final answer
    x = 3,148.92

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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.