Home / 15,022.33-20,729.93-8,307.43

Finding the Fourth Proportional to 15,022.33, 20,729.93 and 8,307.43

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Solution

The fourth proportional to 15,022.33, 20,729.93 and 8,307.43 is: 11,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.33 : 20,729.93 = 8,307.43 : x
  2. Step 2: Convert to fraction form
    15,022.33/20,729.93 = 8,307.43/x
  3. Step 3: Cross multiply
    15,022.33x = 20,729.93 × 8,307.43
  4. Step 4: Simplify right side
    15,022.33x = 172,212,349.02
  5. Step 5: Solve for x
    x = 172,212,349.02/15,022.33
  6. Step 6: Final answer
    x = 11,463.76

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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.