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Finding the Fourth Proportional to 12,885.44, 19,329.12 and 3,652.16

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Solution

The fourth proportional to 12,885.44, 19,329.12 and 3,652.16 is: 5,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.44 : 19,329.12 = 3,652.16 : x
  2. Step 2: Convert to fraction form
    12,885.44/19,329.12 = 3,652.16/x
  3. Step 3: Cross multiply
    12,885.44x = 19,329.12 × 3,652.16
  4. Step 4: Simplify right side
    12,885.44x = 70,593,038.90
  5. Step 5: Solve for x
    x = 70,593,038.90/12,885.44
  6. Step 6: Final answer
    x = 5,478.51

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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.