Home / 14,538.60-21,834.30-12,724.20

Finding the Fourth Proportional to 14,538.60, 21,834.30 and 12,724.20

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Solution

The fourth proportional to 14,538.60, 21,834.30 and 12,724.20 is: 19,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,538.60 : 21,834.30 = 12,724.20 : x
  2. Step 2: Convert to fraction form
    14,538.60/21,834.30 = 12,724.20/x
  3. Step 3: Cross multiply
    14,538.60x = 21,834.30 × 12,724.20
  4. Step 4: Simplify right side
    14,538.60x = 277,824,000.06
  5. Step 5: Solve for x
    x = 277,824,000.06/14,538.60
  6. Step 6: Final answer
    x = 19,109.41

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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.