Home / 12,545.75-18,821.67-6,290.22

Finding the Fourth Proportional to 12,545.75, 18,821.67 and 6,290.22

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Solution

The fourth proportional to 12,545.75, 18,821.67 and 6,290.22 is: 9,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.75 : 18,821.67 = 6,290.22 : x
  2. Step 2: Convert to fraction form
    12,545.75/18,821.67 = 6,290.22/x
  3. Step 3: Cross multiply
    12,545.75x = 18,821.67 × 6,290.22
  4. Step 4: Simplify right side
    12,545.75x = 118,392,492.06
  5. Step 5: Solve for x
    x = 118,392,492.06/12,545.75
  6. Step 6: Final answer
    x = 9,436.86

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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.