Home / 15,618.50-21,553.84-8,545.07

Finding the Fourth Proportional to 15,618.50, 21,553.84 and 8,545.07

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Solution

The fourth proportional to 15,618.50, 21,553.84 and 8,545.07 is: 11,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.50 : 21,553.84 = 8,545.07 : x
  2. Step 2: Convert to fraction form
    15,618.50/21,553.84 = 8,545.07/x
  3. Step 3: Cross multiply
    15,618.50x = 21,553.84 × 8,545.07
  4. Step 4: Simplify right side
    15,618.50x = 184,179,071.57
  5. Step 5: Solve for x
    x = 184,179,071.57/15,618.50
  6. Step 6: Final answer
    x = 11,792.37

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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.