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Finding the Fourth Proportional to 15,545.01, 21,455.87 and 8,834.34

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Solution

The fourth proportional to 15,545.01, 21,455.87 and 8,834.34 is: 12,193.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.01 : 21,455.87 = 8,834.34 : x
  2. Step 2: Convert to fraction form
    15,545.01/21,455.87 = 8,834.34/x
  3. Step 3: Cross multiply
    15,545.01x = 21,455.87 × 8,834.34
  4. Step 4: Simplify right side
    15,545.01x = 189,548,450.58
  5. Step 5: Solve for x
    x = 189,548,450.58/15,545.01
  6. Step 6: Final answer
    x = 12,193.52

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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.