Home / 10,321.62-14,243.88-5,605.92

Finding the Fourth Proportional to 10,321.62, 14,243.88 and 5,605.92

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Solution

The fourth proportional to 10,321.62, 14,243.88 and 5,605.92 is: 7,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.62 : 14,243.88 = 5,605.92 : x
  2. Step 2: Convert to fraction form
    10,321.62/14,243.88 = 5,605.92/x
  3. Step 3: Cross multiply
    10,321.62x = 14,243.88 × 5,605.92
  4. Step 4: Simplify right side
    10,321.62x = 79,850,051.77
  5. Step 5: Solve for x
    x = 79,850,051.77/10,321.62
  6. Step 6: Final answer
    x = 7,736.19

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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.