Home / 14,769.20-22,121.40-13,127.60

Finding the Fourth Proportional to 14,769.20, 22,121.40 and 13,127.60

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Solution

The fourth proportional to 14,769.20, 22,121.40 and 13,127.60 is: 19,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,769.20 : 22,121.40 = 13,127.60 : x
  2. Step 2: Convert to fraction form
    14,769.20/22,121.40 = 13,127.60/x
  3. Step 3: Cross multiply
    14,769.20x = 22,121.40 × 13,127.60
  4. Step 4: Simplify right side
    14,769.20x = 290,400,890.64
  5. Step 5: Solve for x
    x = 290,400,890.64/14,769.20
  6. Step 6: Final answer
    x = 19,662.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.