Home / 21,917.38-32,867.99-7,873.63

Finding the Fourth Proportional to 21,917.38, 32,867.99 and 7,873.63

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Solution

The fourth proportional to 21,917.38, 32,867.99 and 7,873.63 is: 11,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.38 : 32,867.99 = 7,873.63 : x
  2. Step 2: Convert to fraction form
    21,917.38/32,867.99 = 7,873.63/x
  3. Step 3: Cross multiply
    21,917.38x = 32,867.99 × 7,873.63
  4. Step 4: Simplify right side
    21,917.38x = 258,790,423.35
  5. Step 5: Solve for x
    x = 258,790,423.35/21,917.38
  6. Step 6: Final answer
    x = 11,807.55

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1.5x scale

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.