Home / 18,719.53-28,065.24-11,322.47

Finding the Fourth Proportional to 18,719.53, 28,065.24 and 11,322.47

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Solution

The fourth proportional to 18,719.53, 28,065.24 and 11,322.47 is: 16,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.53 : 28,065.24 = 11,322.47 : x
  2. Step 2: Convert to fraction form
    18,719.53/28,065.24 = 11,322.47/x
  3. Step 3: Cross multiply
    18,719.53x = 28,065.24 × 11,322.47
  4. Step 4: Simplify right side
    18,719.53x = 317,767,837.94
  5. Step 5: Solve for x
    x = 317,767,837.94/18,719.53
  6. Step 6: Final answer
    x = 16,975.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.