Home / 13,946.72-20,899.30-7,708.52

Finding the Fourth Proportional to 13,946.72, 20,899.30 and 7,708.52

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Solution

The fourth proportional to 13,946.72, 20,899.30 and 7,708.52 is: 11,551.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.72 : 20,899.30 = 7,708.52 : x
  2. Step 2: Convert to fraction form
    13,946.72/20,899.30 = 7,708.52/x
  3. Step 3: Cross multiply
    13,946.72x = 20,899.30 × 7,708.52
  4. Step 4: Simplify right side
    13,946.72x = 161,102,672.04
  5. Step 5: Solve for x
    x = 161,102,672.04/13,946.72
  6. Step 6: Final answer
    x = 11,551.29

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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.