Home / 13,353.76-20,042.75-7,119.01

Finding the Fourth Proportional to 13,353.76, 20,042.75 and 7,119.01

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Solution

The fourth proportional to 13,353.76, 20,042.75 and 7,119.01 is: 10,684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.76 : 20,042.75 = 7,119.01 : x
  2. Step 2: Convert to fraction form
    13,353.76/20,042.75 = 7,119.01/x
  3. Step 3: Cross multiply
    13,353.76x = 20,042.75 × 7,119.01
  4. Step 4: Simplify right side
    13,353.76x = 142,684,537.68
  5. Step 5: Solve for x
    x = 142,684,537.68/13,353.76
  6. Step 6: Final answer
    x = 10,684.97

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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.