Home / 11,003.42-15,169.53-10,658.78

Finding the Fourth Proportional to 11,003.42, 15,169.53 and 10,658.78

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Solution

The fourth proportional to 11,003.42, 15,169.53 and 10,658.78 is: 14,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.42 : 15,169.53 = 10,658.78 : x
  2. Step 2: Convert to fraction form
    11,003.42/15,169.53 = 10,658.78/x
  3. Step 3: Cross multiply
    11,003.42x = 15,169.53 × 10,658.78
  4. Step 4: Simplify right side
    11,003.42x = 161,688,682.97
  5. Step 5: Solve for x
    x = 161,688,682.97/11,003.42
  6. Step 6: Final answer
    x = 14,694.40

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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.