Home / 18,887.32-26,049-16,764.40

Finding the Fourth Proportional to 18,887.32, 26,049 and 16,764.40

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Solution

The fourth proportional to 18,887.32, 26,049 and 16,764.40 is: 23,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.32 : 26,049 = 16,764.40 : x
  2. Step 2: Convert to fraction form
    18,887.32/26,049 = 16,764.40/x
  3. Step 3: Cross multiply
    18,887.32x = 26,049 × 16,764.40
  4. Step 4: Simplify right side
    18,887.32x = 436,695,855.60
  5. Step 5: Solve for x
    x = 436,695,855.60/18,887.32
  6. Step 6: Final answer
    x = 23,121.11

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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.