Home / 15,022.69-20,730.49-8,307.92

Finding the Fourth Proportional to 15,022.69, 20,730.49 and 8,307.92

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Solution

The fourth proportional to 15,022.69, 20,730.49 and 8,307.92 is: 11,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.69 : 20,730.49 = 8,307.92 : x
  2. Step 2: Convert to fraction form
    15,022.69/20,730.49 = 8,307.92/x
  3. Step 3: Cross multiply
    15,022.69x = 20,730.49 × 8,307.92
  4. Step 4: Simplify right side
    15,022.69x = 172,227,330.27
  5. Step 5: Solve for x
    x = 172,227,330.27/15,022.69
  6. Step 6: Final answer
    x = 11,464.48

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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.