Home / 15,940.86-21,995.37-9,226.86

Finding the Fourth Proportional to 15,940.86, 21,995.37 and 9,226.86

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Solution

The fourth proportional to 15,940.86, 21,995.37 and 9,226.86 is: 12,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.86 : 21,995.37 = 9,226.86 : x
  2. Step 2: Convert to fraction form
    15,940.86/21,995.37 = 9,226.86/x
  3. Step 3: Cross multiply
    15,940.86x = 21,995.37 × 9,226.86
  4. Step 4: Simplify right side
    15,940.86x = 202,948,199.64
  5. Step 5: Solve for x
    x = 202,948,199.64/15,940.86
  6. Step 6: Final answer
    x = 12,731.32

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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.