Home / 10,917.08-15,067.40-6,441.96

Finding the Fourth Proportional to 10,917.08, 15,067.40 and 6,441.96

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Solution

The fourth proportional to 10,917.08, 15,067.40 and 6,441.96 is: 8,890.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.08 : 15,067.40 = 6,441.96 : x
  2. Step 2: Convert to fraction form
    10,917.08/15,067.40 = 6,441.96/x
  3. Step 3: Cross multiply
    10,917.08x = 15,067.40 × 6,441.96
  4. Step 4: Simplify right side
    10,917.08x = 97,063,588.10
  5. Step 5: Solve for x
    x = 97,063,588.10/10,917.08
  6. Step 6: Final answer
    x = 8,890.98

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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.