Home / 10,360.40-15,540.60-5,743.40

Finding the Fourth Proportional to 10,360.40, 15,540.60 and 5,743.40

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Solution

The fourth proportional to 10,360.40, 15,540.60 and 5,743.40 is: 8,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.40 : 15,540.60 = 5,743.40 : x
  2. Step 2: Convert to fraction form
    10,360.40/15,540.60 = 5,743.40/x
  3. Step 3: Cross multiply
    10,360.40x = 15,540.60 × 5,743.40
  4. Step 4: Simplify right side
    10,360.40x = 89,255,882.04
  5. Step 5: Solve for x
    x = 89,255,882.04/10,360.40
  6. Step 6: Final answer
    x = 8,615.10

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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.