Home / 10,243.55-15,370.20-3,670.40

Finding the Fourth Proportional to 10,243.55, 15,370.20 and 3,670.40

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Solution

The fourth proportional to 10,243.55, 15,370.20 and 3,670.40 is: 5,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.55 : 15,370.20 = 3,670.40 : x
  2. Step 2: Convert to fraction form
    10,243.55/15,370.20 = 3,670.40/x
  3. Step 3: Cross multiply
    10,243.55x = 15,370.20 × 3,670.40
  4. Step 4: Simplify right side
    10,243.55x = 56,414,782.08
  5. Step 5: Solve for x
    x = 56,414,782.08/10,243.55
  6. Step 6: Final answer
    x = 5,507.35

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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.