Home / 8,727.87-12,041.40-5,190.60

Finding the Fourth Proportional to 8,727.87, 12,041.40 and 5,190.60

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Solution

The fourth proportional to 8,727.87, 12,041.40 and 5,190.60 is: 7,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.87 : 12,041.40 = 5,190.60 : x
  2. Step 2: Convert to fraction form
    8,727.87/12,041.40 = 5,190.60/x
  3. Step 3: Cross multiply
    8,727.87x = 12,041.40 × 5,190.60
  4. Step 4: Simplify right side
    8,727.87x = 62,502,090.84
  5. Step 5: Solve for x
    x = 62,502,090.84/8,727.87
  6. Step 6: Final answer
    x = 7,161.21

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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.