Home / 12,200.76-18,301.05-3,435.62

Finding the Fourth Proportional to 12,200.76, 18,301.05 and 3,435.62

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Solution

The fourth proportional to 12,200.76, 18,301.05 and 3,435.62 is: 5,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.76 : 18,301.05 = 3,435.62 : x
  2. Step 2: Convert to fraction form
    12,200.76/18,301.05 = 3,435.62/x
  3. Step 3: Cross multiply
    12,200.76x = 18,301.05 × 3,435.62
  4. Step 4: Simplify right side
    12,200.76x = 62,875,361.90
  5. Step 5: Solve for x
    x = 62,875,361.90/12,200.76
  6. Step 6: Final answer
    x = 5,153.40

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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.