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Finding the Fourth Proportional to 13,953.30, 20,946.15 and 8,034.90

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Solution

The fourth proportional to 13,953.30, 20,946.15 and 8,034.90 is: 12,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.30 : 20,946.15 = 8,034.90 : x
  2. Step 2: Convert to fraction form
    13,953.30/20,946.15 = 8,034.90/x
  3. Step 3: Cross multiply
    13,953.30x = 20,946.15 × 8,034.90
  4. Step 4: Simplify right side
    13,953.30x = 168,300,220.64
  5. Step 5: Solve for x
    x = 168,300,220.64/13,953.30
  6. Step 6: Final answer
    x = 12,061.68

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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.