Home / 7,887.12-11,817.46-5,542.93

Finding the Fourth Proportional to 7,887.12, 11,817.46 and 5,542.93

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Solution

The fourth proportional to 7,887.12, 11,817.46 and 5,542.93 is: 8,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.12 : 11,817.46 = 5,542.93 : x
  2. Step 2: Convert to fraction form
    7,887.12/11,817.46 = 5,542.93/x
  3. Step 3: Cross multiply
    7,887.12x = 11,817.46 × 5,542.93
  4. Step 4: Simplify right side
    7,887.12x = 65,503,295.64
  5. Step 5: Solve for x
    x = 65,503,295.64/7,887.12
  6. Step 6: Final answer
    x = 8,305.10

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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.