Home / 8,438.93-12,658.40-2,198.93

Finding the Fourth Proportional to 8,438.93, 12,658.40 and 2,198.93

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Solution

The fourth proportional to 8,438.93, 12,658.40 and 2,198.93 is: 3,298.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.93 : 12,658.40 = 2,198.93 : x
  2. Step 2: Convert to fraction form
    8,438.93/12,658.40 = 2,198.93/x
  3. Step 3: Cross multiply
    8,438.93x = 12,658.40 × 2,198.93
  4. Step 4: Simplify right side
    8,438.93x = 27,834,869.47
  5. Step 5: Solve for x
    x = 27,834,869.47/8,438.93
  6. Step 6: Final answer
    x = 3,298.39

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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.