Home / 7,118.72-10,668.70-6,189.85

Finding the Fourth Proportional to 7,118.72, 10,668.70 and 6,189.85

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Solution

The fourth proportional to 7,118.72, 10,668.70 and 6,189.85 is: 9,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.72 : 10,668.70 = 6,189.85 : x
  2. Step 2: Convert to fraction form
    7,118.72/10,668.70 = 6,189.85/x
  3. Step 3: Cross multiply
    7,118.72x = 10,668.70 × 6,189.85
  4. Step 4: Simplify right side
    7,118.72x = 66,037,638.95
  5. Step 5: Solve for x
    x = 66,037,638.95/7,118.72
  6. Step 6: Final answer
    x = 9,276.62

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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.