Home / 13,310.08-18,369.60-8,348.80

Finding the Fourth Proportional to 13,310.08, 18,369.60 and 8,348.80

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Solution

The fourth proportional to 13,310.08, 18,369.60 and 8,348.80 is: 11,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.08 : 18,369.60 = 8,348.80 : x
  2. Step 2: Convert to fraction form
    13,310.08/18,369.60 = 8,348.80/x
  3. Step 3: Cross multiply
    13,310.08x = 18,369.60 × 8,348.80
  4. Step 4: Simplify right side
    13,310.08x = 153,364,116.48
  5. Step 5: Solve for x
    x = 153,364,116.48/13,310.08
  6. Step 6: Final answer
    x = 11,522.40

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Similar ratio
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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.