Home / 17,913.84-24,731.44-11,965.20

Finding the Fourth Proportional to 17,913.84, 24,731.44 and 11,965.20

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Solution

The fourth proportional to 17,913.84, 24,731.44 and 11,965.20 is: 16,518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.84 : 24,731.44 = 11,965.20 : x
  2. Step 2: Convert to fraction form
    17,913.84/24,731.44 = 11,965.20/x
  3. Step 3: Cross multiply
    17,913.84x = 24,731.44 × 11,965.20
  4. Step 4: Simplify right side
    17,913.84x = 295,916,625.89
  5. Step 5: Solve for x
    x = 295,916,625.89/17,913.84
  6. Step 6: Final answer
    x = 16,518.88

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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.