Home / 8,239.60-12,356.84-2,973.92

Finding the Fourth Proportional to 8,239.60, 12,356.84 and 2,973.92

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Solution

The fourth proportional to 8,239.60, 12,356.84 and 2,973.92 is: 4,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.60 : 12,356.84 = 2,973.92 : x
  2. Step 2: Convert to fraction form
    8,239.60/12,356.84 = 2,973.92/x
  3. Step 3: Cross multiply
    8,239.60x = 12,356.84 × 2,973.92
  4. Step 4: Simplify right side
    8,239.60x = 36,748,269.64
  5. Step 5: Solve for x
    x = 36,748,269.64/8,239.60
  6. Step 6: Final answer
    x = 4,459.96

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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.