Home / 18,850.40-26,011.76-10,891.56

Finding the Fourth Proportional to 18,850.40, 26,011.76 and 10,891.56

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Solution

The fourth proportional to 18,850.40, 26,011.76 and 10,891.56 is: 15,029.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.40 : 26,011.76 = 10,891.56 : x
  2. Step 2: Convert to fraction form
    18,850.40/26,011.76 = 10,891.56/x
  3. Step 3: Cross multiply
    18,850.40x = 26,011.76 × 10,891.56
  4. Step 4: Simplify right side
    18,850.40x = 283,308,644.75
  5. Step 5: Solve for x
    x = 283,308,644.75/18,850.40
  6. Step 6: Final answer
    x = 15,029.32

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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.