Home / 9,879.27-13,633.40-5,403.00

Finding the Fourth Proportional to 9,879.27, 13,633.40 and 5,403.00

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Solution

The fourth proportional to 9,879.27, 13,633.40 and 5,403.00 is: 7,456.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.27 : 13,633.40 = 5,403.00 : x
  2. Step 2: Convert to fraction form
    9,879.27/13,633.40 = 5,403.00/x
  3. Step 3: Cross multiply
    9,879.27x = 13,633.40 × 5,403.00
  4. Step 4: Simplify right side
    9,879.27x = 73,661,294.44
  5. Step 5: Solve for x
    x = 73,661,294.44/9,879.27
  6. Step 6: Final answer
    x = 7,456.15

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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.