Home / 13,110.53-18,091.15-7,804.62

Finding the Fourth Proportional to 13,110.53, 18,091.15 and 7,804.62

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Solution

The fourth proportional to 13,110.53, 18,091.15 and 7,804.62 is: 10,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.53 : 18,091.15 = 7,804.62 : x
  2. Step 2: Convert to fraction form
    13,110.53/18,091.15 = 7,804.62/x
  3. Step 3: Cross multiply
    13,110.53x = 18,091.15 × 7,804.62
  4. Step 4: Simplify right side
    13,110.53x = 141,194,531.60
  5. Step 5: Solve for x
    x = 141,194,531.60/13,110.53
  6. Step 6: Final answer
    x = 10,769.56

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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.