Home / 7,823.72-10,793.70-5,172.68

Finding the Fourth Proportional to 7,823.72, 10,793.70 and 5,172.68

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Solution

The fourth proportional to 7,823.72, 10,793.70 and 5,172.68 is: 7,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.72 : 10,793.70 = 5,172.68 : x
  2. Step 2: Convert to fraction form
    7,823.72/10,793.70 = 5,172.68/x
  3. Step 3: Cross multiply
    7,823.72x = 10,793.70 × 5,172.68
  4. Step 4: Simplify right side
    7,823.72x = 55,832,356.12
  5. Step 5: Solve for x
    x = 55,832,356.12/7,823.72
  6. Step 6: Final answer
    x = 7,136.29

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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.