Home / 12,353.15-18,506.50-6,105.89

Finding the Fourth Proportional to 12,353.15, 18,506.50 and 6,105.89

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Solution

The fourth proportional to 12,353.15, 18,506.50 and 6,105.89 is: 9,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.15 : 18,506.50 = 6,105.89 : x
  2. Step 2: Convert to fraction form
    12,353.15/18,506.50 = 6,105.89/x
  3. Step 3: Cross multiply
    12,353.15x = 18,506.50 × 6,105.89
  4. Step 4: Simplify right side
    12,353.15x = 112,998,545.49
  5. Step 5: Solve for x
    x = 112,998,545.49/12,353.15
  6. Step 6: Final answer
    x = 9,147.35

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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.