Home / 11,997.84-17,981.40-10,513.68

Finding the Fourth Proportional to 11,997.84, 17,981.40 and 10,513.68

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Solution

The fourth proportional to 11,997.84, 17,981.40 and 10,513.68 is: 15,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.84 : 17,981.40 = 10,513.68 : x
  2. Step 2: Convert to fraction form
    11,997.84/17,981.40 = 10,513.68/x
  3. Step 3: Cross multiply
    11,997.84x = 17,981.40 × 10,513.68
  4. Step 4: Simplify right side
    11,997.84x = 189,050,685.55
  5. Step 5: Solve for x
    x = 189,050,685.55/11,997.84
  6. Step 6: Final answer
    x = 15,757.06

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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.