Home / 13,101.55-18,077.33-7,795.33

Finding the Fourth Proportional to 13,101.55, 18,077.33 and 7,795.33

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Solution

The fourth proportional to 13,101.55, 18,077.33 and 7,795.33 is: 10,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.55 : 18,077.33 = 7,795.33 : x
  2. Step 2: Convert to fraction form
    13,101.55/18,077.33 = 7,795.33/x
  3. Step 3: Cross multiply
    13,101.55x = 18,077.33 × 7,795.33
  4. Step 4: Simplify right side
    13,101.55x = 140,918,752.87
  5. Step 5: Solve for x
    x = 140,918,752.87/13,101.55
  6. Step 6: Final answer
    x = 10,755.88

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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.