Home / 16,715.13-23,076.49-12,489.42

Finding the Fourth Proportional to 16,715.13, 23,076.49 and 12,489.42

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Solution

The fourth proportional to 16,715.13, 23,076.49 and 12,489.42 is: 17,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,715.13 : 23,076.49 = 12,489.42 : x
  2. Step 2: Convert to fraction form
    16,715.13/23,076.49 = 12,489.42/x
  3. Step 3: Cross multiply
    16,715.13x = 23,076.49 × 12,489.42
  4. Step 4: Simplify right side
    16,715.13x = 288,211,975.74
  5. Step 5: Solve for x
    x = 288,211,975.74/16,715.13
  6. Step 6: Final answer
    x = 17,242.58

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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.