Home / 11,318.41-15,615.12-8,341.35

Finding the Fourth Proportional to 11,318.41, 15,615.12 and 8,341.35

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Solution

The fourth proportional to 11,318.41, 15,615.12 and 8,341.35 is: 11,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.41 : 15,615.12 = 8,341.35 : x
  2. Step 2: Convert to fraction form
    11,318.41/15,615.12 = 8,341.35/x
  3. Step 3: Cross multiply
    11,318.41x = 15,615.12 × 8,341.35
  4. Step 4: Simplify right side
    11,318.41x = 130,251,181.21
  5. Step 5: Solve for x
    x = 130,251,181.21/11,318.41
  6. Step 6: Final answer
    x = 11,507.90

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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.