Home / 7,508.70-11,271.15-4,228.20

Finding the Fourth Proportional to 7,508.70, 11,271.15 and 4,228.20

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Solution

The fourth proportional to 7,508.70, 11,271.15 and 4,228.20 is: 6,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,508.70 : 11,271.15 = 4,228.20 : x
  2. Step 2: Convert to fraction form
    7,508.70/11,271.15 = 4,228.20/x
  3. Step 3: Cross multiply
    7,508.70x = 11,271.15 × 4,228.20
  4. Step 4: Simplify right side
    7,508.70x = 47,656,676.43
  5. Step 5: Solve for x
    x = 47,656,676.43/7,508.70
  6. Step 6: Final answer
    x = 6,346.86

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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.