Home / 8,039.60-12,077.87-5,705.36

Finding the Fourth Proportional to 8,039.60, 12,077.87 and 5,705.36

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Solution

The fourth proportional to 8,039.60, 12,077.87 and 5,705.36 is: 8,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.60 : 12,077.87 = 5,705.36 : x
  2. Step 2: Convert to fraction form
    8,039.60/12,077.87 = 5,705.36/x
  3. Step 3: Cross multiply
    8,039.60x = 12,077.87 × 5,705.36
  4. Step 4: Simplify right side
    8,039.60x = 68,908,507.47
  5. Step 5: Solve for x
    x = 68,908,507.47/8,039.60
  6. Step 6: Final answer
    x = 8,571.14

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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.