Home / 9,859.51-13,598.44-5,879.78

Finding the Fourth Proportional to 9,859.51, 13,598.44 and 5,879.78

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Solution

The fourth proportional to 9,859.51, 13,598.44 and 5,879.78 is: 8,109.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,859.51 : 13,598.44 = 5,879.78 : x
  2. Step 2: Convert to fraction form
    9,859.51/13,598.44 = 5,879.78/x
  3. Step 3: Cross multiply
    9,859.51x = 13,598.44 × 5,879.78
  4. Step 4: Simplify right side
    9,859.51x = 79,955,835.54
  5. Step 5: Solve for x
    x = 79,955,835.54/9,859.51
  6. Step 6: Final answer
    x = 8,109.51

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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.