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Finding the Fourth Proportional to 13,354.32, 20,052.32 and 12,762.80

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Solution

The fourth proportional to 13,354.32, 20,052.32 and 12,762.80 is: 19,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.32 : 20,052.32 = 12,762.80 : x
  2. Step 2: Convert to fraction form
    13,354.32/20,052.32 = 12,762.80/x
  3. Step 3: Cross multiply
    13,354.32x = 20,052.32 × 12,762.80
  4. Step 4: Simplify right side
    13,354.32x = 255,923,585.62
  5. Step 5: Solve for x
    x = 255,923,585.62/13,354.32
  6. Step 6: Final answer
    x = 19,164.10

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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.