Home / 19,134.57-28,696.65-12,104.03

Finding the Fourth Proportional to 19,134.57, 28,696.65 and 12,104.03

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Solution

The fourth proportional to 19,134.57, 28,696.65 and 12,104.03 is: 18,152.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.57 : 28,696.65 = 12,104.03 : x
  2. Step 2: Convert to fraction form
    19,134.57/28,696.65 = 12,104.03/x
  3. Step 3: Cross multiply
    19,134.57x = 28,696.65 × 12,104.03
  4. Step 4: Simplify right side
    19,134.57x = 347,344,969.02
  5. Step 5: Solve for x
    x = 347,344,969.02/19,134.57
  6. Step 6: Final answer
    x = 18,152.74

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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.