Home / 12,310.40-18,466.64-3,545.44

Finding the Fourth Proportional to 12,310.40, 18,466.64 and 3,545.44

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Solution

The fourth proportional to 12,310.40, 18,466.64 and 3,545.44 is: 5,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.40 : 18,466.64 = 3,545.44 : x
  2. Step 2: Convert to fraction form
    12,310.40/18,466.64 = 3,545.44/x
  3. Step 3: Cross multiply
    12,310.40x = 18,466.64 × 3,545.44
  4. Step 4: Simplify right side
    12,310.40x = 65,472,364.12
  5. Step 5: Solve for x
    x = 65,472,364.12/12,310.40
  6. Step 6: Final answer
    x = 5,318.46

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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.