Home / 15,021.73-20,730.34-8,307.48

Finding the Fourth Proportional to 15,021.73, 20,730.34 and 8,307.48

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Solution

The fourth proportional to 15,021.73, 20,730.34 and 8,307.48 is: 11,464.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.73 : 20,730.34 = 8,307.48 : x
  2. Step 2: Convert to fraction form
    15,021.73/20,730.34 = 8,307.48/x
  3. Step 3: Cross multiply
    15,021.73x = 20,730.34 × 8,307.48
  4. Step 4: Simplify right side
    15,021.73x = 172,216,884.94
  5. Step 5: Solve for x
    x = 172,216,884.94/15,021.73
  6. Step 6: Final answer
    x = 11,464.52

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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.