Home / 14,253.85-19,668.60-7,879.58

Finding the Fourth Proportional to 14,253.85, 19,668.60 and 7,879.58

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Solution

The fourth proportional to 14,253.85, 19,668.60 and 7,879.58 is: 10,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.85 : 19,668.60 = 7,879.58 : x
  2. Step 2: Convert to fraction form
    14,253.85/19,668.60 = 7,879.58/x
  3. Step 3: Cross multiply
    14,253.85x = 19,668.60 × 7,879.58
  4. Step 4: Simplify right side
    14,253.85x = 154,980,277.72
  5. Step 5: Solve for x
    x = 154,980,277.72/14,253.85
  6. Step 6: Final answer
    x = 10,872.88

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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.