Home / 6,885.18-10,305.90-5,427.18

Finding the Fourth Proportional to 6,885.18, 10,305.90 and 5,427.18

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Solution

The fourth proportional to 6,885.18, 10,305.90 and 5,427.18 is: 8,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.18 : 10,305.90 = 5,427.18 : x
  2. Step 2: Convert to fraction form
    6,885.18/10,305.90 = 5,427.18/x
  3. Step 3: Cross multiply
    6,885.18x = 10,305.90 × 5,427.18
  4. Step 4: Simplify right side
    6,885.18x = 55,931,974.36
  5. Step 5: Solve for x
    x = 55,931,974.36/6,885.18
  6. Step 6: Final answer
    x = 8,123.53

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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.