Home / 16,786.70-23,166.56-9,715.40

Finding the Fourth Proportional to 16,786.70, 23,166.56 and 9,715.40

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Solution

The fourth proportional to 16,786.70, 23,166.56 and 9,715.40 is: 13,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786.70 : 23,166.56 = 9,715.40 : x
  2. Step 2: Convert to fraction form
    16,786.70/23,166.56 = 9,715.40/x
  3. Step 3: Cross multiply
    16,786.70x = 23,166.56 × 9,715.40
  4. Step 4: Simplify right side
    16,786.70x = 225,072,232.61
  5. Step 5: Solve for x
    x = 225,072,232.61/16,786.70
  6. Step 6: Final answer
    x = 13,407.78

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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.