Home / 9,879.30-13,633.47-5,402.93

Finding the Fourth Proportional to 9,879.30, 13,633.47 and 5,402.93

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Solution

The fourth proportional to 9,879.30, 13,633.47 and 5,402.93 is: 7,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.30 : 13,633.47 = 5,402.93 : x
  2. Step 2: Convert to fraction form
    9,879.30/13,633.47 = 5,402.93/x
  3. Step 3: Cross multiply
    9,879.30x = 13,633.47 × 5,402.93
  4. Step 4: Simplify right side
    9,879.30x = 73,660,615.90
  5. Step 5: Solve for x
    x = 73,660,615.90/9,879.30
  6. Step 6: Final answer
    x = 7,456.06

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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.