Home / 13,340.42-18,409.60-7,372.19

Finding the Fourth Proportional to 13,340.42, 18,409.60 and 7,372.19

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Solution

The fourth proportional to 13,340.42, 18,409.60 and 7,372.19 is: 10,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.42 : 18,409.60 = 7,372.19 : x
  2. Step 2: Convert to fraction form
    13,340.42/18,409.60 = 7,372.19/x
  3. Step 3: Cross multiply
    13,340.42x = 18,409.60 × 7,372.19
  4. Step 4: Simplify right side
    13,340.42x = 135,719,124.26
  5. Step 5: Solve for x
    x = 135,719,124.26/13,340.42
  6. Step 6: Final answer
    x = 10,173.53

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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.