Home / 10,919.35-16,379.37-8,545.24

Finding the Fourth Proportional to 10,919.35, 16,379.37 and 8,545.24

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Solution

The fourth proportional to 10,919.35, 16,379.37 and 8,545.24 is: 12,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.35 : 16,379.37 = 8,545.24 : x
  2. Step 2: Convert to fraction form
    10,919.35/16,379.37 = 8,545.24/x
  3. Step 3: Cross multiply
    10,919.35x = 16,379.37 × 8,545.24
  4. Step 4: Simplify right side
    10,919.35x = 139,965,647.70
  5. Step 5: Solve for x
    x = 139,965,647.70/10,919.35
  6. Step 6: Final answer
    x = 12,818.13

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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.