Home / 8,816.56-12,166.86-5,039.81

Finding the Fourth Proportional to 8,816.56, 12,166.86 and 5,039.81

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Solution

The fourth proportional to 8,816.56, 12,166.86 and 5,039.81 is: 6,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.56 : 12,166.86 = 5,039.81 : x
  2. Step 2: Convert to fraction form
    8,816.56/12,166.86 = 5,039.81/x
  3. Step 3: Cross multiply
    8,816.56x = 12,166.86 × 5,039.81
  4. Step 4: Simplify right side
    8,816.56x = 61,318,657.70
  5. Step 5: Solve for x
    x = 61,318,657.70/8,816.56
  6. Step 6: Final answer
    x = 6,954.94

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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.