Home / 10,917.72-15,067.08-10,285.92

Finding the Fourth Proportional to 10,917.72, 15,067.08 and 10,285.92

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Solution

The fourth proportional to 10,917.72, 15,067.08 and 10,285.92 is: 14,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.72 : 15,067.08 = 10,285.92 : x
  2. Step 2: Convert to fraction form
    10,917.72/15,067.08 = 10,285.92/x
  3. Step 3: Cross multiply
    10,917.72x = 15,067.08 × 10,285.92
  4. Step 4: Simplify right side
    10,917.72x = 154,978,779.51
  5. Step 5: Solve for x
    x = 154,978,779.51/10,917.72
  6. Step 6: Final answer
    x = 14,195.16

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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.