Home / 13,076.11-18,047.65-7,769.90

Finding the Fourth Proportional to 13,076.11, 18,047.65 and 7,769.90

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Solution

The fourth proportional to 13,076.11, 18,047.65 and 7,769.90 is: 10,724.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.11 : 18,047.65 = 7,769.90 : x
  2. Step 2: Convert to fraction form
    13,076.11/18,047.65 = 7,769.90/x
  3. Step 3: Cross multiply
    13,076.11x = 18,047.65 × 7,769.90
  4. Step 4: Simplify right side
    13,076.11x = 140,228,306.65
  5. Step 5: Solve for x
    x = 140,228,306.65/13,076.11
  6. Step 6: Final answer
    x = 10,724.01

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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.