Home / 9,118.51-13,677.77-2,879.01

Finding the Fourth Proportional to 9,118.51, 13,677.77 and 2,879.01

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Solution

The fourth proportional to 9,118.51, 13,677.77 and 2,879.01 is: 4,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.51 : 13,677.77 = 2,879.01 : x
  2. Step 2: Convert to fraction form
    9,118.51/13,677.77 = 2,879.01/x
  3. Step 3: Cross multiply
    9,118.51x = 13,677.77 × 2,879.01
  4. Step 4: Simplify right side
    9,118.51x = 39,378,427.61
  5. Step 5: Solve for x
    x = 39,378,427.61/9,118.51
  6. Step 6: Final answer
    x = 4,318.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.