Home / 18,719.84-25,834.74-10,764.56

Finding the Fourth Proportional to 18,719.84, 25,834.74 and 10,764.56

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Solution

The fourth proportional to 18,719.84, 25,834.74 and 10,764.56 is: 14,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.84 : 25,834.74 = 10,764.56 : x
  2. Step 2: Convert to fraction form
    18,719.84/25,834.74 = 10,764.56/x
  3. Step 3: Cross multiply
    18,719.84x = 25,834.74 × 10,764.56
  4. Step 4: Simplify right side
    18,719.84x = 278,099,608.81
  5. Step 5: Solve for x
    x = 278,099,608.81/18,719.84
  6. Step 6: Final answer
    x = 14,855.88

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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.