Home / 18,521.93-27,785.63-5,372.60

Finding the Fourth Proportional to 18,521.93, 27,785.63 and 5,372.60

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Solution

The fourth proportional to 18,521.93, 27,785.63 and 5,372.60 is: 8,059.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.93 : 27,785.63 = 5,372.60 : x
  2. Step 2: Convert to fraction form
    18,521.93/27,785.63 = 5,372.60/x
  3. Step 3: Cross multiply
    18,521.93x = 27,785.63 × 5,372.60
  4. Step 4: Simplify right side
    18,521.93x = 149,280,950.24
  5. Step 5: Solve for x
    x = 149,280,950.24/18,521.93
  6. Step 6: Final answer
    x = 8,059.69

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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.