Home / 8,316.50-11,471.91-5,173.70

Finding the Fourth Proportional to 8,316.50, 11,471.91 and 5,173.70

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Solution

The fourth proportional to 8,316.50, 11,471.91 and 5,173.70 is: 7,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.50 : 11,471.91 = 5,173.70 : x
  2. Step 2: Convert to fraction form
    8,316.50/11,471.91 = 5,173.70/x
  3. Step 3: Cross multiply
    8,316.50x = 11,471.91 × 5,173.70
  4. Step 4: Simplify right side
    8,316.50x = 59,352,220.77
  5. Step 5: Solve for x
    x = 59,352,220.77/8,316.50
  6. Step 6: Final answer
    x = 7,136.68

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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.