Home / 12,650.24-18,975.40-3,885.10

Finding the Fourth Proportional to 12,650.24, 18,975.40 and 3,885.10

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Solution

The fourth proportional to 12,650.24, 18,975.40 and 3,885.10 is: 5,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.24 : 18,975.40 = 3,885.10 : x
  2. Step 2: Convert to fraction form
    12,650.24/18,975.40 = 3,885.10/x
  3. Step 3: Cross multiply
    12,650.24x = 18,975.40 × 3,885.10
  4. Step 4: Simplify right side
    12,650.24x = 73,721,269.39
  5. Step 5: Solve for x
    x = 73,721,269.39/12,650.24
  6. Step 6: Final answer
    x = 5,827.66

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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.