Home / 15,022.51-20,729.25-8,307.23

Finding the Fourth Proportional to 15,022.51, 20,729.25 and 8,307.23

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Solution

The fourth proportional to 15,022.51, 20,729.25 and 8,307.23 is: 11,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.51 : 20,729.25 = 8,307.23 : x
  2. Step 2: Convert to fraction form
    15,022.51/20,729.25 = 8,307.23/x
  3. Step 3: Cross multiply
    15,022.51x = 20,729.25 × 8,307.23
  4. Step 4: Simplify right side
    15,022.51x = 172,202,647.48
  5. Step 5: Solve for x
    x = 172,202,647.48/15,022.51
  6. Step 6: Final answer
    x = 11,462.97

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Double scale
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Similar ratio
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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.