Home / 12,193.44-18,287.32-3,429.20

Finding the Fourth Proportional to 12,193.44, 18,287.32 and 3,429.20

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Solution

The fourth proportional to 12,193.44, 18,287.32 and 3,429.20 is: 5,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.44 : 18,287.32 = 3,429.20 : x
  2. Step 2: Convert to fraction form
    12,193.44/18,287.32 = 3,429.20/x
  3. Step 3: Cross multiply
    12,193.44x = 18,287.32 × 3,429.20
  4. Step 4: Simplify right side
    12,193.44x = 62,710,877.74
  5. Step 5: Solve for x
    x = 62,710,877.74/12,193.44
  6. Step 6: Final answer
    x = 5,143.00

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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.