Home / 19,651.76-29,477.57-7,964.94

Finding the Fourth Proportional to 19,651.76, 29,477.57 and 7,964.94

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Solution

The fourth proportional to 19,651.76, 29,477.57 and 7,964.94 is: 11,947.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.76 : 29,477.57 = 7,964.94 : x
  2. Step 2: Convert to fraction form
    19,651.76/29,477.57 = 7,964.94/x
  3. Step 3: Cross multiply
    19,651.76x = 29,477.57 × 7,964.94
  4. Step 4: Simplify right side
    19,651.76x = 234,787,036.57
  5. Step 5: Solve for x
    x = 234,787,036.57/19,651.76
  6. Step 6: Final answer
    x = 11,947.38

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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.