Home / 8,074.13-11,142.38-4,887.50

Finding the Fourth Proportional to 8,074.13, 11,142.38 and 4,887.50

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Solution

The fourth proportional to 8,074.13, 11,142.38 and 4,887.50 is: 6,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.13 : 11,142.38 = 4,887.50 : x
  2. Step 2: Convert to fraction form
    8,074.13/11,142.38 = 4,887.50/x
  3. Step 3: Cross multiply
    8,074.13x = 11,142.38 × 4,887.50
  4. Step 4: Simplify right side
    8,074.13x = 54,458,357.81
  5. Step 5: Solve for x
    x = 54,458,357.81/8,074.13
  6. Step 6: Final answer
    x = 6,744.80

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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.