Home / 15,498.92-21,388.73-8,425.34

Finding the Fourth Proportional to 15,498.92, 21,388.73 and 8,425.34

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Solution

The fourth proportional to 15,498.92, 21,388.73 and 8,425.34 is: 11,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.92 : 21,388.73 = 8,425.34 : x
  2. Step 2: Convert to fraction form
    15,498.92/21,388.73 = 8,425.34/x
  3. Step 3: Cross multiply
    15,498.92x = 21,388.73 × 8,425.34
  4. Step 4: Simplify right side
    15,498.92x = 180,207,322.42
  5. Step 5: Solve for x
    x = 180,207,322.42/15,498.92
  6. Step 6: Final answer
    x = 11,627.09

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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.