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Finding the Fourth Proportional to 15,044.88, 20,767.50 and 9,076.80

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Solution

The fourth proportional to 15,044.88, 20,767.50 and 9,076.80 is: 12,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.88 : 20,767.50 = 9,076.80 : x
  2. Step 2: Convert to fraction form
    15,044.88/20,767.50 = 9,076.80/x
  3. Step 3: Cross multiply
    15,044.88x = 20,767.50 × 9,076.80
  4. Step 4: Simplify right side
    15,044.88x = 188,502,444.00
  5. Step 5: Solve for x
    x = 188,502,444.00/15,044.88
  6. Step 6: Final answer
    x = 12,529.34

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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.