Home / 8,238.30-12,357.40-1,998.31

Finding the Fourth Proportional to 8,238.30, 12,357.40 and 1,998.31

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Solution

The fourth proportional to 8,238.30, 12,357.40 and 1,998.31 is: 2,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.30 : 12,357.40 = 1,998.31 : x
  2. Step 2: Convert to fraction form
    8,238.30/12,357.40 = 1,998.31/x
  3. Step 3: Cross multiply
    8,238.30x = 12,357.40 × 1,998.31
  4. Step 4: Simplify right side
    8,238.30x = 24,693,907.02
  5. Step 5: Solve for x
    x = 24,693,907.02/8,238.30
  6. Step 6: Final answer
    x = 2,997.45

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.