Home / 16,872.40-23,278.27-10,911.61

Finding the Fourth Proportional to 16,872.40, 23,278.27 and 10,911.61

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Solution

The fourth proportional to 16,872.40, 23,278.27 and 10,911.61 is: 15,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.40 : 23,278.27 = 10,911.61 : x
  2. Step 2: Convert to fraction form
    16,872.40/23,278.27 = 10,911.61/x
  3. Step 3: Cross multiply
    16,872.40x = 23,278.27 × 10,911.61
  4. Step 4: Simplify right side
    16,872.40x = 254,003,232.77
  5. Step 5: Solve for x
    x = 254,003,232.77/16,872.40
  6. Step 6: Final answer
    x = 15,054.37

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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.