Home / 15,493.20-21,383.70-9,204.36

Finding the Fourth Proportional to 15,493.20, 21,383.70 and 9,204.36

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Solution

The fourth proportional to 15,493.20, 21,383.70 and 9,204.36 is: 12,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,493.20 : 21,383.70 = 9,204.36 : x
  2. Step 2: Convert to fraction form
    15,493.20/21,383.70 = 9,204.36/x
  3. Step 3: Cross multiply
    15,493.20x = 21,383.70 × 9,204.36
  4. Step 4: Simplify right side
    15,493.20x = 196,823,272.93
  5. Step 5: Solve for x
    x = 196,823,272.93/15,493.20
  6. Step 6: Final answer
    x = 12,703.85

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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.