Home / 12,954.20-19,434.13-4,188.98

Finding the Fourth Proportional to 12,954.20, 19,434.13 and 4,188.98

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Solution

The fourth proportional to 12,954.20, 19,434.13 and 4,188.98 is: 6,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.20 : 19,434.13 = 4,188.98 : x
  2. Step 2: Convert to fraction form
    12,954.20/19,434.13 = 4,188.98/x
  3. Step 3: Cross multiply
    12,954.20x = 19,434.13 × 4,188.98
  4. Step 4: Simplify right side
    12,954.20x = 81,409,220.00
  5. Step 5: Solve for x
    x = 81,409,220.00/12,954.20
  6. Step 6: Final answer
    x = 6,284.39

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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.