Home / 8,812.87-12,161.55-5,035.80

Finding the Fourth Proportional to 8,812.87, 12,161.55 and 5,035.80

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Solution

The fourth proportional to 8,812.87, 12,161.55 and 5,035.80 is: 6,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.87 : 12,161.55 = 5,035.80 : x
  2. Step 2: Convert to fraction form
    8,812.87/12,161.55 = 5,035.80/x
  3. Step 3: Cross multiply
    8,812.87x = 12,161.55 × 5,035.80
  4. Step 4: Simplify right side
    8,812.87x = 61,243,077.91
  5. Step 5: Solve for x
    x = 61,243,077.91/8,812.87
  6. Step 6: Final answer
    x = 6,949.28

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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.