Home / 9,613.09-13,266.53-5,421.25

Finding the Fourth Proportional to 9,613.09, 13,266.53 and 5,421.25

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Solution

The fourth proportional to 9,613.09, 13,266.53 and 5,421.25 is: 7,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,613.09 : 13,266.53 = 5,421.25 : x
  2. Step 2: Convert to fraction form
    9,613.09/13,266.53 = 5,421.25/x
  3. Step 3: Cross multiply
    9,613.09x = 13,266.53 × 5,421.25
  4. Step 4: Simplify right side
    9,613.09x = 71,921,175.76
  5. Step 5: Solve for x
    x = 71,921,175.76/9,613.09
  6. Step 6: Final answer
    x = 7,481.59

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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.