Home / 12,445.50-18,667.77-3,085.54

Finding the Fourth Proportional to 12,445.50, 18,667.77 and 3,085.54

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Solution

The fourth proportional to 12,445.50, 18,667.77 and 3,085.54 is: 4,628.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.50 : 18,667.77 = 3,085.54 : x
  2. Step 2: Convert to fraction form
    12,445.50/18,667.77 = 3,085.54/x
  3. Step 3: Cross multiply
    12,445.50x = 18,667.77 × 3,085.54
  4. Step 4: Simplify right side
    12,445.50x = 57,600,151.05
  5. Step 5: Solve for x
    x = 57,600,151.05/12,445.50
  6. Step 6: Final answer
    x = 4,628.19

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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.