Home / 8,945.21-12,344.43-5,588.06

Finding the Fourth Proportional to 8,945.21, 12,344.43 and 5,588.06

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Solution

The fourth proportional to 8,945.21, 12,344.43 and 5,588.06 is: 7,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.21 : 12,344.43 = 5,588.06 : x
  2. Step 2: Convert to fraction form
    8,945.21/12,344.43 = 5,588.06/x
  3. Step 3: Cross multiply
    8,945.21x = 12,344.43 × 5,588.06
  4. Step 4: Simplify right side
    8,945.21x = 68,981,415.51
  5. Step 5: Solve for x
    x = 68,981,415.51/8,945.21
  6. Step 6: Final answer
    x = 7,711.55

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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.