Home / 15,741.48-21,709.20-11,195.24

Finding the Fourth Proportional to 15,741.48, 21,709.20 and 11,195.24

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Solution

The fourth proportional to 15,741.48, 21,709.20 and 11,195.24 is: 15,439.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.48 : 21,709.20 = 11,195.24 : x
  2. Step 2: Convert to fraction form
    15,741.48/21,709.20 = 11,195.24/x
  3. Step 3: Cross multiply
    15,741.48x = 21,709.20 × 11,195.24
  4. Step 4: Simplify right side
    15,741.48x = 243,039,704.21
  5. Step 5: Solve for x
    x = 243,039,704.21/15,741.48
  6. Step 6: Final answer
    x = 15,439.44

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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.