Home / 14,939.28-20,608.20-9,270.48

Finding the Fourth Proportional to 14,939.28, 20,608.20 and 9,270.48

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Solution

The fourth proportional to 14,939.28, 20,608.20 and 9,270.48 is: 12,788.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.28 : 20,608.20 = 9,270.48 : x
  2. Step 2: Convert to fraction form
    14,939.28/20,608.20 = 9,270.48/x
  3. Step 3: Cross multiply
    14,939.28x = 20,608.20 × 9,270.48
  4. Step 4: Simplify right side
    14,939.28x = 191,047,905.94
  5. Step 5: Solve for x
    x = 191,047,905.94/14,939.28
  6. Step 6: Final answer
    x = 12,788.29

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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.