Home / 8,422.84-11,622.99-4,645.27

Finding the Fourth Proportional to 8,422.84, 11,622.99 and 4,645.27

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Solution

The fourth proportional to 8,422.84, 11,622.99 and 4,645.27 is: 6,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.84 : 11,622.99 = 4,645.27 : x
  2. Step 2: Convert to fraction form
    8,422.84/11,622.99 = 4,645.27/x
  3. Step 3: Cross multiply
    8,422.84x = 11,622.99 × 4,645.27
  4. Step 4: Simplify right side
    8,422.84x = 53,991,926.76
  5. Step 5: Solve for x
    x = 53,991,926.76/8,422.84
  6. Step 6: Final answer
    x = 6,410.18

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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.