Home / 14,160.78-19,542.66-7,873.56

Finding the Fourth Proportional to 14,160.78, 19,542.66 and 7,873.56

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Solution

The fourth proportional to 14,160.78, 19,542.66 and 7,873.56 is: 10,865.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.78 : 19,542.66 = 7,873.56 : x
  2. Step 2: Convert to fraction form
    14,160.78/19,542.66 = 7,873.56/x
  3. Step 3: Cross multiply
    14,160.78x = 19,542.66 × 7,873.56
  4. Step 4: Simplify right side
    14,160.78x = 153,870,306.07
  5. Step 5: Solve for x
    x = 153,870,306.07/14,160.78
  6. Step 6: Final answer
    x = 10,865.95

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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.