Home / 7,665.91-11,490.60-3,708.81

Finding the Fourth Proportional to 7,665.91, 11,490.60 and 3,708.81

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Solution

The fourth proportional to 7,665.91, 11,490.60 and 3,708.81 is: 5,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.91 : 11,490.60 = 3,708.81 : x
  2. Step 2: Convert to fraction form
    7,665.91/11,490.60 = 3,708.81/x
  3. Step 3: Cross multiply
    7,665.91x = 11,490.60 × 3,708.81
  4. Step 4: Simplify right side
    7,665.91x = 42,616,423.46
  5. Step 5: Solve for x
    x = 42,616,423.46/7,665.91
  6. Step 6: Final answer
    x = 5,559.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.