Home / 13,512.45-18,641.82-9,029.10

Finding the Fourth Proportional to 13,512.45, 18,641.82 and 9,029.10

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Solution

The fourth proportional to 13,512.45, 18,641.82 and 9,029.10 is: 12,456.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.45 : 18,641.82 = 9,029.10 : x
  2. Step 2: Convert to fraction form
    13,512.45/18,641.82 = 9,029.10/x
  3. Step 3: Cross multiply
    13,512.45x = 18,641.82 × 9,029.10
  4. Step 4: Simplify right side
    13,512.45x = 168,318,856.96
  5. Step 5: Solve for x
    x = 168,318,856.96/13,512.45
  6. Step 6: Final answer
    x = 12,456.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.