Home / 11,344.20-15,655.44-6,308.40

Finding the Fourth Proportional to 11,344.20, 15,655.44 and 6,308.40

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Solution

The fourth proportional to 11,344.20, 15,655.44 and 6,308.40 is: 8,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,344.20 : 15,655.44 = 6,308.40 : x
  2. Step 2: Convert to fraction form
    11,344.20/15,655.44 = 6,308.40/x
  3. Step 3: Cross multiply
    11,344.20x = 15,655.44 × 6,308.40
  4. Step 4: Simplify right side
    11,344.20x = 98,760,777.70
  5. Step 5: Solve for x
    x = 98,760,777.70/11,344.20
  6. Step 6: Final answer
    x = 8,705.84

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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.