Home / 6,885.11-9,501.27-3,900.87

Finding the Fourth Proportional to 6,885.11, 9,501.27 and 3,900.87

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Solution

The fourth proportional to 6,885.11, 9,501.27 and 3,900.87 is: 5,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.11 : 9,501.27 = 3,900.87 : x
  2. Step 2: Convert to fraction form
    6,885.11/9,501.27 = 3,900.87/x
  3. Step 3: Cross multiply
    6,885.11x = 9,501.27 × 3,900.87
  4. Step 4: Simplify right side
    6,885.11x = 37,063,219.10
  5. Step 5: Solve for x
    x = 37,063,219.10/6,885.11
  6. Step 6: Final answer
    x = 5,383.10

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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.