Home / 10,379.28-14,322.68-5,663.48

Finding the Fourth Proportional to 10,379.28, 14,322.68 and 5,663.48

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Solution

The fourth proportional to 10,379.28, 14,322.68 and 5,663.48 is: 7,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.28 : 14,322.68 = 5,663.48 : x
  2. Step 2: Convert to fraction form
    10,379.28/14,322.68 = 5,663.48/x
  3. Step 3: Cross multiply
    10,379.28x = 14,322.68 × 5,663.48
  4. Step 4: Simplify right side
    10,379.28x = 81,116,211.73
  5. Step 5: Solve for x
    x = 81,116,211.73/10,379.28
  6. Step 6: Final answer
    x = 7,815.21

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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.