Home / 13,733.24-18,951.64-7,764.68

Finding the Fourth Proportional to 13,733.24, 18,951.64 and 7,764.68

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Solution

The fourth proportional to 13,733.24, 18,951.64 and 7,764.68 is: 10,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,733.24 : 18,951.64 = 7,764.68 : x
  2. Step 2: Convert to fraction form
    13,733.24/18,951.64 = 7,764.68/x
  3. Step 3: Cross multiply
    13,733.24x = 18,951.64 × 7,764.68
  4. Step 4: Simplify right side
    13,733.24x = 147,153,420.08
  5. Step 5: Solve for x
    x = 147,153,420.08/13,733.24
  6. Step 6: Final answer
    x = 10,715.13

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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.