Home / 15,370.68-21,197.34-11,401.68

Finding the Fourth Proportional to 15,370.68, 21,197.34 and 11,401.68

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Solution

The fourth proportional to 15,370.68, 21,197.34 and 11,401.68 is: 15,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.68 : 21,197.34 = 11,401.68 : x
  2. Step 2: Convert to fraction form
    15,370.68/21,197.34 = 11,401.68/x
  3. Step 3: Cross multiply
    15,370.68x = 21,197.34 × 11,401.68
  4. Step 4: Simplify right side
    15,370.68x = 241,685,287.53
  5. Step 5: Solve for x
    x = 241,685,287.53/15,370.68
  6. Step 6: Final answer
    x = 15,723.79

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Double scale
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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.