Home / 9,879.44-13,632.70-5,402.84

Finding the Fourth Proportional to 9,879.44, 13,632.70 and 5,402.84

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Solution

The fourth proportional to 9,879.44, 13,632.70 and 5,402.84 is: 7,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.44 : 13,632.70 = 5,402.84 : x
  2. Step 2: Convert to fraction form
    9,879.44/13,632.70 = 5,402.84/x
  3. Step 3: Cross multiply
    9,879.44x = 13,632.70 × 5,402.84
  4. Step 4: Simplify right side
    9,879.44x = 73,655,296.87
  5. Step 5: Solve for x
    x = 73,655,296.87/9,879.44
  6. Step 6: Final answer
    x = 7,455.41

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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.