Home / 15,509.43-21,403.26-8,794.92

Finding the Fourth Proportional to 15,509.43, 21,403.26 and 8,794.92

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Solution

The fourth proportional to 15,509.43, 21,403.26 and 8,794.92 is: 12,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,509.43 : 21,403.26 = 8,794.92 : x
  2. Step 2: Convert to fraction form
    15,509.43/21,403.26 = 8,794.92/x
  3. Step 3: Cross multiply
    15,509.43x = 21,403.26 × 8,794.92
  4. Step 4: Simplify right side
    15,509.43x = 188,239,959.44
  5. Step 5: Solve for x
    x = 188,239,959.44/15,509.43
  6. Step 6: Final answer
    x = 12,137.13

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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.