Home / 15,043.89-20,760.57-8,238.34

Finding the Fourth Proportional to 15,043.89, 20,760.57 and 8,238.34

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Solution

The fourth proportional to 15,043.89, 20,760.57 and 8,238.34 is: 11,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.89 : 20,760.57 = 8,238.34 : x
  2. Step 2: Convert to fraction form
    15,043.89/20,760.57 = 8,238.34/x
  3. Step 3: Cross multiply
    15,043.89x = 20,760.57 × 8,238.34
  4. Step 4: Simplify right side
    15,043.89x = 171,032,660.20
  5. Step 5: Solve for x
    x = 171,032,660.20/15,043.89
  6. Step 6: Final answer
    x = 11,368.91

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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.