Home / 13,101.33-18,077.81-7,511.25

Finding the Fourth Proportional to 13,101.33, 18,077.81 and 7,511.25

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Solution

The fourth proportional to 13,101.33, 18,077.81 and 7,511.25 is: 10,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.33 : 18,077.81 = 7,511.25 : x
  2. Step 2: Convert to fraction form
    13,101.33/18,077.81 = 7,511.25/x
  3. Step 3: Cross multiply
    13,101.33x = 18,077.81 × 7,511.25
  4. Step 4: Simplify right side
    13,101.33x = 135,786,912.81
  5. Step 5: Solve for x
    x = 135,786,912.81/13,101.33
  6. Step 6: Final answer
    x = 10,364.36

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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.