Home / 11,722.77-17,550.14-9,117.81

Finding the Fourth Proportional to 11,722.77, 17,550.14 and 9,117.81

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Solution

The fourth proportional to 11,722.77, 17,550.14 and 9,117.81 is: 13,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.77 : 17,550.14 = 9,117.81 : x
  2. Step 2: Convert to fraction form
    11,722.77/17,550.14 = 9,117.81/x
  3. Step 3: Cross multiply
    11,722.77x = 17,550.14 × 9,117.81
  4. Step 4: Simplify right side
    11,722.77x = 160,018,796.40
  5. Step 5: Solve for x
    x = 160,018,796.40/11,722.77
  6. Step 6: Final answer
    x = 13,650.25

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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.