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Finding the Fourth Proportional to 14,954.85, 20,636.93 and 8,240.29

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Solution

The fourth proportional to 14,954.85, 20,636.93 and 8,240.29 is: 11,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,954.85 : 20,636.93 = 8,240.29 : x
  2. Step 2: Convert to fraction form
    14,954.85/20,636.93 = 8,240.29/x
  3. Step 3: Cross multiply
    14,954.85x = 20,636.93 × 8,240.29
  4. Step 4: Simplify right side
    14,954.85x = 170,054,256.92
  5. Step 5: Solve for x
    x = 170,054,256.92/14,954.85
  6. Step 6: Final answer
    x = 11,371.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.