Home / 15,461.92-21,337.49-8,388.37

Finding the Fourth Proportional to 15,461.92, 21,337.49 and 8,388.37

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Solution

The fourth proportional to 15,461.92, 21,337.49 and 8,388.37 is: 11,575.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.92 : 21,337.49 = 8,388.37 : x
  2. Step 2: Convert to fraction form
    15,461.92/21,337.49 = 8,388.37/x
  3. Step 3: Cross multiply
    15,461.92x = 21,337.49 × 8,388.37
  4. Step 4: Simplify right side
    15,461.92x = 178,986,760.99
  5. Step 5: Solve for x
    x = 178,986,760.99/15,461.92
  6. Step 6: Final answer
    x = 11,575.97

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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.