Home / 13,206.15-18,227.43-8,730.54

Finding the Fourth Proportional to 13,206.15, 18,227.43 and 8,730.54

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Solution

The fourth proportional to 13,206.15, 18,227.43 and 8,730.54 is: 12,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.15 : 18,227.43 = 8,730.54 : x
  2. Step 2: Convert to fraction form
    13,206.15/18,227.43 = 8,730.54/x
  3. Step 3: Cross multiply
    13,206.15x = 18,227.43 × 8,730.54
  4. Step 4: Simplify right side
    13,206.15x = 159,135,306.71
  5. Step 5: Solve for x
    x = 159,135,306.71/13,206.15
  6. Step 6: Final answer
    x = 12,050.09

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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.