Home / 18,949.55-26,145.59-11,393.46

Finding the Fourth Proportional to 18,949.55, 26,145.59 and 11,393.46

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Solution

The fourth proportional to 18,949.55, 26,145.59 and 11,393.46 is: 15,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.55 : 26,145.59 = 11,393.46 : x
  2. Step 2: Convert to fraction form
    18,949.55/26,145.59 = 11,393.46/x
  3. Step 3: Cross multiply
    18,949.55x = 26,145.59 × 11,393.46
  4. Step 4: Simplify right side
    18,949.55x = 297,888,676.87
  5. Step 5: Solve for x
    x = 297,888,676.87/18,949.55
  6. Step 6: Final answer
    x = 15,720.10

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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.