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Finding the Fourth Proportional to 18,363.84, 27,545.10 and 5,216.18

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Solution

The fourth proportional to 18,363.84, 27,545.10 and 5,216.18 is: 7,824.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.84 : 27,545.10 = 5,216.18 : x
  2. Step 2: Convert to fraction form
    18,363.84/27,545.10 = 5,216.18/x
  3. Step 3: Cross multiply
    18,363.84x = 27,545.10 × 5,216.18
  4. Step 4: Simplify right side
    18,363.84x = 143,680,061.99
  5. Step 5: Solve for x
    x = 143,680,061.99/18,363.84
  6. Step 6: Final answer
    x = 7,824.08

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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.