Home / 15,545.70-21,452.28-8,830.44

Finding the Fourth Proportional to 15,545.70, 21,452.28 and 8,830.44

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Solution

The fourth proportional to 15,545.70, 21,452.28 and 8,830.44 is: 12,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.70 : 21,452.28 = 8,830.44 : x
  2. Step 2: Convert to fraction form
    15,545.70/21,452.28 = 8,830.44/x
  3. Step 3: Cross multiply
    15,545.70x = 21,452.28 × 8,830.44
  4. Step 4: Simplify right side
    15,545.70x = 189,433,071.40
  5. Step 5: Solve for x
    x = 189,433,071.40/15,545.70
  6. Step 6: Final answer
    x = 12,185.56

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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.