Home / 7,613.25-11,421.32-3,509.25

Finding the Fourth Proportional to 7,613.25, 11,421.32 and 3,509.25

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Solution

The fourth proportional to 7,613.25, 11,421.32 and 3,509.25 is: 5,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.25 : 11,421.32 = 3,509.25 : x
  2. Step 2: Convert to fraction form
    7,613.25/11,421.32 = 3,509.25/x
  3. Step 3: Cross multiply
    7,613.25x = 11,421.32 × 3,509.25
  4. Step 4: Simplify right side
    7,613.25x = 40,080,267.21
  5. Step 5: Solve for x
    x = 40,080,267.21/7,613.25
  6. Step 6: Final answer
    x = 5,264.54

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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.