Home / 18,995.74-26,197.07-15,819.53

Finding the Fourth Proportional to 18,995.74, 26,197.07 and 15,819.53

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Solution

The fourth proportional to 18,995.74, 26,197.07 and 15,819.53 is: 21,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.74 : 26,197.07 = 15,819.53 : x
  2. Step 2: Convert to fraction form
    18,995.74/26,197.07 = 15,819.53/x
  3. Step 3: Cross multiply
    18,995.74x = 26,197.07 × 15,819.53
  4. Step 4: Simplify right side
    18,995.74x = 414,425,124.69
  5. Step 5: Solve for x
    x = 414,425,124.69/18,995.74
  6. Step 6: Final answer
    x = 21,816.74

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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.