Home / 9,879.85-13,634.36-5,901.31

Finding the Fourth Proportional to 9,879.85, 13,634.36 and 5,901.31

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Solution

The fourth proportional to 9,879.85, 13,634.36 and 5,901.31 is: 8,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.85 : 13,634.36 = 5,901.31 : x
  2. Step 2: Convert to fraction form
    9,879.85/13,634.36 = 5,901.31/x
  3. Step 3: Cross multiply
    9,879.85x = 13,634.36 × 5,901.31
  4. Step 4: Simplify right side
    9,879.85x = 80,460,585.01
  5. Step 5: Solve for x
    x = 80,460,585.01/9,879.85
  6. Step 6: Final answer
    x = 8,143.91

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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.