Home / 10,629.26-15,976.32-10,379.78

Finding the Fourth Proportional to 10,629.26, 15,976.32 and 10,379.78

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Solution

The fourth proportional to 10,629.26, 15,976.32 and 10,379.78 is: 15,601.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.26 : 15,976.32 = 10,379.78 : x
  2. Step 2: Convert to fraction form
    10,629.26/15,976.32 = 10,379.78/x
  3. Step 3: Cross multiply
    10,629.26x = 15,976.32 × 10,379.78
  4. Step 4: Simplify right side
    10,629.26x = 165,830,686.81
  5. Step 5: Solve for x
    x = 165,830,686.81/10,629.26
  6. Step 6: Final answer
    x = 15,601.34

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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.