Home / 11,545.53-17,311.08-4,878.60

Finding the Fourth Proportional to 11,545.53, 17,311.08 and 4,878.60

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Solution

The fourth proportional to 11,545.53, 17,311.08 and 4,878.60 is: 7,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.53 : 17,311.08 = 4,878.60 : x
  2. Step 2: Convert to fraction form
    11,545.53/17,311.08 = 4,878.60/x
  3. Step 3: Cross multiply
    11,545.53x = 17,311.08 × 4,878.60
  4. Step 4: Simplify right side
    11,545.53x = 84,453,834.89
  5. Step 5: Solve for x
    x = 84,453,834.89/11,545.53
  6. Step 6: Final answer
    x = 7,314.85

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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.