Home / 10,379.07-15,529.62-9,816.39

Finding the Fourth Proportional to 10,379.07, 15,529.62 and 9,816.39

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Solution

The fourth proportional to 10,379.07, 15,529.62 and 9,816.39 is: 14,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.07 : 15,529.62 = 9,816.39 : x
  2. Step 2: Convert to fraction form
    10,379.07/15,529.62 = 9,816.39/x
  3. Step 3: Cross multiply
    10,379.07x = 15,529.62 × 9,816.39
  4. Step 4: Simplify right side
    10,379.07x = 152,444,806.47
  5. Step 5: Solve for x
    x = 152,444,806.47/10,379.07
  6. Step 6: Final answer
    x = 14,687.71

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1.5x scale

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.