Home / 14,129.38-19,499.14-7,841.76

Finding the Fourth Proportional to 14,129.38, 19,499.14 and 7,841.76

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Solution

The fourth proportional to 14,129.38, 19,499.14 and 7,841.76 is: 10,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.38 : 19,499.14 = 7,841.76 : x
  2. Step 2: Convert to fraction form
    14,129.38/19,499.14 = 7,841.76/x
  3. Step 3: Cross multiply
    14,129.38x = 19,499.14 × 7,841.76
  4. Step 4: Simplify right side
    14,129.38x = 152,907,576.09
  5. Step 5: Solve for x
    x = 152,907,576.09/14,129.38
  6. Step 6: Final answer
    x = 10,821.96

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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.