Home / 12,430.38-18,648.50-4,110.39

Finding the Fourth Proportional to 12,430.38, 18,648.50 and 4,110.39

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Solution

The fourth proportional to 12,430.38, 18,648.50 and 4,110.39 is: 6,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.38 : 18,648.50 = 4,110.39 : x
  2. Step 2: Convert to fraction form
    12,430.38/18,648.50 = 4,110.39/x
  3. Step 3: Cross multiply
    12,430.38x = 18,648.50 × 4,110.39
  4. Step 4: Simplify right side
    12,430.38x = 76,652,587.36
  5. Step 5: Solve for x
    x = 76,652,587.36/12,430.38
  6. Step 6: Final answer
    x = 6,166.55

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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.