Home / 12,555.21-18,827.85-5,535.54

Finding the Fourth Proportional to 12,555.21, 18,827.85 and 5,535.54

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Solution

The fourth proportional to 12,555.21, 18,827.85 and 5,535.54 is: 8,301.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.21 : 18,827.85 = 5,535.54 : x
  2. Step 2: Convert to fraction form
    12,555.21/18,827.85 = 5,535.54/x
  3. Step 3: Cross multiply
    12,555.21x = 18,827.85 × 5,535.54
  4. Step 4: Simplify right side
    12,555.21x = 104,222,316.79
  5. Step 5: Solve for x
    x = 104,222,316.79/12,555.21
  6. Step 6: Final answer
    x = 8,301.12

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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.