Home / 7,509.70-11,272.65-4,229.20

Finding the Fourth Proportional to 7,509.70, 11,272.65 and 4,229.20

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Solution

The fourth proportional to 7,509.70, 11,272.65 and 4,229.20 is: 6,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.70 : 11,272.65 = 4,229.20 : x
  2. Step 2: Convert to fraction form
    7,509.70/11,272.65 = 4,229.20/x
  3. Step 3: Cross multiply
    7,509.70x = 11,272.65 × 4,229.20
  4. Step 4: Simplify right side
    7,509.70x = 47,674,291.38
  5. Step 5: Solve for x
    x = 47,674,291.38/7,509.70
  6. Step 6: Final answer
    x = 6,348.36

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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.