Home / 14,769.57-20,381.20-8,395.28

Finding the Fourth Proportional to 14,769.57, 20,381.20 and 8,395.28

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Solution

The fourth proportional to 14,769.57, 20,381.20 and 8,395.28 is: 11,585.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,769.57 : 20,381.20 = 8,395.28 : x
  2. Step 2: Convert to fraction form
    14,769.57/20,381.20 = 8,395.28/x
  3. Step 3: Cross multiply
    14,769.57x = 20,381.20 × 8,395.28
  4. Step 4: Simplify right side
    14,769.57x = 171,105,747.35
  5. Step 5: Solve for x
    x = 171,105,747.35/14,769.57
  6. Step 6: Final answer
    x = 11,585.02

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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.