Home / 13,343.81-20,027.75-7,109.01

Finding the Fourth Proportional to 13,343.81, 20,027.75 and 7,109.01

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Solution

The fourth proportional to 13,343.81, 20,027.75 and 7,109.01 is: 10,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.81 : 20,027.75 = 7,109.01 : x
  2. Step 2: Convert to fraction form
    13,343.81/20,027.75 = 7,109.01/x
  3. Step 3: Cross multiply
    13,343.81x = 20,027.75 × 7,109.01
  4. Step 4: Simplify right side
    13,343.81x = 142,377,439.48
  5. Step 5: Solve for x
    x = 142,377,439.48/13,343.81
  6. Step 6: Final answer
    x = 10,669.93

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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.