Home / 6,887.40-10,352.70-6,757.80

Finding the Fourth Proportional to 6,887.40, 10,352.70 and 6,757.80

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Solution

The fourth proportional to 6,887.40, 10,352.70 and 6,757.80 is: 10,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.40 : 10,352.70 = 6,757.80 : x
  2. Step 2: Convert to fraction form
    6,887.40/10,352.70 = 6,757.80/x
  3. Step 3: Cross multiply
    6,887.40x = 10,352.70 × 6,757.80
  4. Step 4: Simplify right side
    6,887.40x = 69,961,476.06
  5. Step 5: Solve for x
    x = 69,961,476.06/6,887.40
  6. Step 6: Final answer
    x = 10,157.89

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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.