Home / 12,822.21-19,220.05-4,922.62

Finding the Fourth Proportional to 12,822.21, 19,220.05 and 4,922.62

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Solution

The fourth proportional to 12,822.21, 19,220.05 and 4,922.62 is: 7,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822.21 : 19,220.05 = 4,922.62 : x
  2. Step 2: Convert to fraction form
    12,822.21/19,220.05 = 4,922.62/x
  3. Step 3: Cross multiply
    12,822.21x = 19,220.05 × 4,922.62
  4. Step 4: Simplify right side
    12,822.21x = 94,613,002.53
  5. Step 5: Solve for x
    x = 94,613,002.53/12,822.21
  6. Step 6: Final answer
    x = 7,378.84

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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.