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Finding the Fourth Proportional to 12,545.62, 18,798.05 and 6,622.18

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Solution

The fourth proportional to 12,545.62, 18,798.05 and 6,622.18 is: 9,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.62 : 18,798.05 = 6,622.18 : x
  2. Step 2: Convert to fraction form
    12,545.62/18,798.05 = 6,622.18/x
  3. Step 3: Cross multiply
    12,545.62x = 18,798.05 × 6,622.18
  4. Step 4: Simplify right side
    12,545.62x = 124,484,040.31
  5. Step 5: Solve for x
    x = 124,484,040.31/12,545.62
  6. Step 6: Final answer
    x = 9,922.51

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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.