Home / 11,153.10-16,729.65-4,992.78

Finding the Fourth Proportional to 11,153.10, 16,729.65 and 4,992.78

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Solution

The fourth proportional to 11,153.10, 16,729.65 and 4,992.78 is: 7,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.10 : 16,729.65 = 4,992.78 : x
  2. Step 2: Convert to fraction form
    11,153.10/16,729.65 = 4,992.78/x
  3. Step 3: Cross multiply
    11,153.10x = 16,729.65 × 4,992.78
  4. Step 4: Simplify right side
    11,153.10x = 83,527,461.93
  5. Step 5: Solve for x
    x = 83,527,461.93/11,153.10
  6. Step 6: Final answer
    x = 7,489.17

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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.