Home / 18,151.57-27,215.52-7,628.32

Finding the Fourth Proportional to 18,151.57, 27,215.52 and 7,628.32

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Solution

The fourth proportional to 18,151.57, 27,215.52 and 7,628.32 is: 11,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.57 : 27,215.52 = 7,628.32 : x
  2. Step 2: Convert to fraction form
    18,151.57/27,215.52 = 7,628.32/x
  3. Step 3: Cross multiply
    18,151.57x = 27,215.52 × 7,628.32
  4. Step 4: Simplify right side
    18,151.57x = 207,608,695.53
  5. Step 5: Solve for x
    x = 207,608,695.53/18,151.57
  6. Step 6: Final answer
    x = 11,437.51

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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.