Home / 13,619.52-18,794.94-7,651.20

Finding the Fourth Proportional to 13,619.52, 18,794.94 and 7,651.20

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Solution

The fourth proportional to 13,619.52, 18,794.94 and 7,651.20 is: 10,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.52 : 18,794.94 = 7,651.20 : x
  2. Step 2: Convert to fraction form
    13,619.52/18,794.94 = 7,651.20/x
  3. Step 3: Cross multiply
    13,619.52x = 18,794.94 × 7,651.20
  4. Step 4: Simplify right side
    13,619.52x = 143,803,844.93
  5. Step 5: Solve for x
    x = 143,803,844.93/13,619.52
  6. Step 6: Final answer
    x = 10,558.66

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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.