Home / 14,049.60-19,389.72-7,764

Finding the Fourth Proportional to 14,049.60, 19,389.72 and 7,764

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Solution

The fourth proportional to 14,049.60, 19,389.72 and 7,764 is: 10,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.60 : 19,389.72 = 7,764 : x
  2. Step 2: Convert to fraction form
    14,049.60/19,389.72 = 7,764/x
  3. Step 3: Cross multiply
    14,049.60x = 19,389.72 × 7,764
  4. Step 4: Simplify right side
    14,049.60x = 150,541,786.08
  5. Step 5: Solve for x
    x = 150,541,786.08/14,049.60
  6. Step 6: Final answer
    x = 10,715.02

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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.