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Finding the Fourth Proportional to 12,348.60, 18,522.90 and 6,106.20

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Solution

The fourth proportional to 12,348.60, 18,522.90 and 6,106.20 is: 9,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.60 : 18,522.90 = 6,106.20 : x
  2. Step 2: Convert to fraction form
    12,348.60/18,522.90 = 6,106.20/x
  3. Step 3: Cross multiply
    12,348.60x = 18,522.90 × 6,106.20
  4. Step 4: Simplify right side
    12,348.60x = 113,104,531.98
  5. Step 5: Solve for x
    x = 113,104,531.98/12,348.60
  6. Step 6: Final answer
    x = 9,159.30

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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.