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Finding the Fourth Proportional to 14,762.20, 22,143.30 and 8,857.30

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Solution

The fourth proportional to 14,762.20, 22,143.30 and 8,857.30 is: 13,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.20 : 22,143.30 = 8,857.30 : x
  2. Step 2: Convert to fraction form
    14,762.20/22,143.30 = 8,857.30/x
  3. Step 3: Cross multiply
    14,762.20x = 22,143.30 × 8,857.30
  4. Step 4: Simplify right side
    14,762.20x = 196,129,851.09
  5. Step 5: Solve for x
    x = 196,129,851.09/14,762.20
  6. Step 6: Final answer
    x = 13,285.95

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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.