Home / 15,581.30-21,502.68-9,613.22

Finding the Fourth Proportional to 15,581.30, 21,502.68 and 9,613.22

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Solution

The fourth proportional to 15,581.30, 21,502.68 and 9,613.22 is: 13,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.30 : 21,502.68 = 9,613.22 : x
  2. Step 2: Convert to fraction form
    15,581.30/21,502.68 = 9,613.22/x
  3. Step 3: Cross multiply
    15,581.30x = 21,502.68 × 9,613.22
  4. Step 4: Simplify right side
    15,581.30x = 206,709,993.43
  5. Step 5: Solve for x
    x = 206,709,993.43/15,581.30
  6. Step 6: Final answer
    x = 13,266.54

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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.