Home / 8,397.30-12,588.40-3,206.82

Finding the Fourth Proportional to 8,397.30, 12,588.40 and 3,206.82

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Solution

The fourth proportional to 8,397.30, 12,588.40 and 3,206.82 is: 4,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.30 : 12,588.40 = 3,206.82 : x
  2. Step 2: Convert to fraction form
    8,397.30/12,588.40 = 3,206.82/x
  3. Step 3: Cross multiply
    8,397.30x = 12,588.40 × 3,206.82
  4. Step 4: Simplify right side
    8,397.30x = 40,368,766.06
  5. Step 5: Solve for x
    x = 40,368,766.06/8,397.30
  6. Step 6: Final answer
    x = 4,807.35

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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.