Home / 7,371.30-10,170.17-6,660.86

Finding the Fourth Proportional to 7,371.30, 10,170.17 and 6,660.86

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Solution

The fourth proportional to 7,371.30, 10,170.17 and 6,660.86 is: 9,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.30 : 10,170.17 = 6,660.86 : x
  2. Step 2: Convert to fraction form
    7,371.30/10,170.17 = 6,660.86/x
  3. Step 3: Cross multiply
    7,371.30x = 10,170.17 × 6,660.86
  4. Step 4: Simplify right side
    7,371.30x = 67,742,029.24
  5. Step 5: Solve for x
    x = 67,742,029.24/7,371.30
  6. Step 6: Final answer
    x = 9,189.98

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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.