Home / 8,920.37-13,371.44-6,449.06

Finding the Fourth Proportional to 8,920.37, 13,371.44 and 6,449.06

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Solution

The fourth proportional to 8,920.37, 13,371.44 and 6,449.06 is: 9,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.37 : 13,371.44 = 6,449.06 : x
  2. Step 2: Convert to fraction form
    8,920.37/13,371.44 = 6,449.06/x
  3. Step 3: Cross multiply
    8,920.37x = 13,371.44 × 6,449.06
  4. Step 4: Simplify right side
    8,920.37x = 86,233,119.74
  5. Step 5: Solve for x
    x = 86,233,119.74/8,920.37
  6. Step 6: Final answer
    x = 9,666.99

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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.