Home / 14,057.48-19,399.20-7,769.72

Finding the Fourth Proportional to 14,057.48, 19,399.20 and 7,769.72

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Solution

The fourth proportional to 14,057.48, 19,399.20 and 7,769.72 is: 10,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,057.48 : 19,399.20 = 7,769.72 : x
  2. Step 2: Convert to fraction form
    14,057.48/19,399.20 = 7,769.72/x
  3. Step 3: Cross multiply
    14,057.48x = 19,399.20 × 7,769.72
  4. Step 4: Simplify right side
    14,057.48x = 150,726,352.22
  5. Step 5: Solve for x
    x = 150,726,352.22/14,057.48
  6. Step 6: Final answer
    x = 10,722.15

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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.