Home / 15,983.12-22,056.75-9,272.72

Finding the Fourth Proportional to 15,983.12, 22,056.75 and 9,272.72

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Solution

The fourth proportional to 15,983.12, 22,056.75 and 9,272.72 is: 12,796.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.12 : 22,056.75 = 9,272.72 : x
  2. Step 2: Convert to fraction form
    15,983.12/22,056.75 = 9,272.72/x
  3. Step 3: Cross multiply
    15,983.12x = 22,056.75 × 9,272.72
  4. Step 4: Simplify right side
    15,983.12x = 204,525,956.58
  5. Step 5: Solve for x
    x = 204,525,956.58/15,983.12
  6. Step 6: Final answer
    x = 12,796.38

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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.