Home / 18,898.88-26,078.86-11,136.46

Finding the Fourth Proportional to 18,898.88, 26,078.86 and 11,136.46

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Solution

The fourth proportional to 18,898.88, 26,078.86 and 11,136.46 is: 15,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.88 : 26,078.86 = 11,136.46 : x
  2. Step 2: Convert to fraction form
    18,898.88/26,078.86 = 11,136.46/x
  3. Step 3: Cross multiply
    18,898.88x = 26,078.86 × 11,136.46
  4. Step 4: Simplify right side
    18,898.88x = 290,426,181.24
  5. Step 5: Solve for x
    x = 290,426,181.24/18,898.88
  6. Step 6: Final answer
    x = 15,367.38

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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.