Home / 7,514.08-11,256.72-4,217.20

Finding the Fourth Proportional to 7,514.08, 11,256.72 and 4,217.20

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Solution

The fourth proportional to 7,514.08, 11,256.72 and 4,217.20 is: 6,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,514.08 : 11,256.72 = 4,217.20 : x
  2. Step 2: Convert to fraction form
    7,514.08/11,256.72 = 4,217.20/x
  3. Step 3: Cross multiply
    7,514.08x = 11,256.72 × 4,217.20
  4. Step 4: Simplify right side
    7,514.08x = 47,471,839.58
  5. Step 5: Solve for x
    x = 47,471,839.58/7,514.08
  6. Step 6: Final answer
    x = 6,317.72

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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.