Home / 15,953.87-23,930.80-7,178.54

Finding the Fourth Proportional to 15,953.87, 23,930.80 and 7,178.54

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Solution

The fourth proportional to 15,953.87, 23,930.80 and 7,178.54 is: 10,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,953.87 : 23,930.80 = 7,178.54 : x
  2. Step 2: Convert to fraction form
    15,953.87/23,930.80 = 7,178.54/x
  3. Step 3: Cross multiply
    15,953.87x = 23,930.80 × 7,178.54
  4. Step 4: Simplify right side
    15,953.87x = 171,788,067.43
  5. Step 5: Solve for x
    x = 171,788,067.43/15,953.87
  6. Step 6: Final answer
    x = 10,767.80

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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.