Home / 13,545.54-18,689.26-9,297.90

Finding the Fourth Proportional to 13,545.54, 18,689.26 and 9,297.90

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Solution

The fourth proportional to 13,545.54, 18,689.26 and 9,297.90 is: 12,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.54 : 18,689.26 = 9,297.90 : x
  2. Step 2: Convert to fraction form
    13,545.54/18,689.26 = 9,297.90/x
  3. Step 3: Cross multiply
    13,545.54x = 18,689.26 × 9,297.90
  4. Step 4: Simplify right side
    13,545.54x = 173,770,870.55
  5. Step 5: Solve for x
    x = 173,770,870.55/13,545.54
  6. Step 6: Final answer
    x = 12,828.64

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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.