Home / 11,225.70-15,491.18-6,189.90

Finding the Fourth Proportional to 11,225.70, 15,491.18 and 6,189.90

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Solution

The fourth proportional to 11,225.70, 15,491.18 and 6,189.90 is: 8,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.70 : 15,491.18 = 6,189.90 : x
  2. Step 2: Convert to fraction form
    11,225.70/15,491.18 = 6,189.90/x
  3. Step 3: Cross multiply
    11,225.70x = 15,491.18 × 6,189.90
  4. Step 4: Simplify right side
    11,225.70x = 95,888,855.08
  5. Step 5: Solve for x
    x = 95,888,855.08/11,225.70
  6. Step 6: Final answer
    x = 8,541.90

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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.