Home / 8,439.47-12,658.08-2,199.93

Finding the Fourth Proportional to 8,439.47, 12,658.08 and 2,199.93

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Solution

The fourth proportional to 8,439.47, 12,658.08 and 2,199.93 is: 3,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.47 : 12,658.08 = 2,199.93 : x
  2. Step 2: Convert to fraction form
    8,439.47/12,658.08 = 2,199.93/x
  3. Step 3: Cross multiply
    8,439.47x = 12,658.08 × 2,199.93
  4. Step 4: Simplify right side
    8,439.47x = 27,846,889.93
  5. Step 5: Solve for x
    x = 27,846,889.93/8,439.47
  6. Step 6: Final answer
    x = 3,299.60

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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.