Home / 13,434.12-20,100.50-12,069.94

Finding the Fourth Proportional to 13,434.12, 20,100.50 and 12,069.94

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Solution

The fourth proportional to 13,434.12, 20,100.50 and 12,069.94 is: 18,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.12 : 20,100.50 = 12,069.94 : x
  2. Step 2: Convert to fraction form
    13,434.12/20,100.50 = 12,069.94/x
  3. Step 3: Cross multiply
    13,434.12x = 20,100.50 × 12,069.94
  4. Step 4: Simplify right side
    13,434.12x = 242,611,828.97
  5. Step 5: Solve for x
    x = 242,611,828.97/13,434.12
  6. Step 6: Final answer
    x = 18,059.38

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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.