Home / 8,938.40-13,409.52-3,741.60

Finding the Fourth Proportional to 8,938.40, 13,409.52 and 3,741.60

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Solution

The fourth proportional to 8,938.40, 13,409.52 and 3,741.60 is: 5,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.40 : 13,409.52 = 3,741.60 : x
  2. Step 2: Convert to fraction form
    8,938.40/13,409.52 = 3,741.60/x
  3. Step 3: Cross multiply
    8,938.40x = 13,409.52 × 3,741.60
  4. Step 4: Simplify right side
    8,938.40x = 50,173,060.03
  5. Step 5: Solve for x
    x = 50,173,060.03/8,938.40
  6. Step 6: Final answer
    x = 5,613.20

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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.