Home / 13,378.44-20,068.78-4,609.80

Finding the Fourth Proportional to 13,378.44, 20,068.78 and 4,609.80

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Solution

The fourth proportional to 13,378.44, 20,068.78 and 4,609.80 is: 6,915.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.44 : 20,068.78 = 4,609.80 : x
  2. Step 2: Convert to fraction form
    13,378.44/20,068.78 = 4,609.80/x
  3. Step 3: Cross multiply
    13,378.44x = 20,068.78 × 4,609.80
  4. Step 4: Simplify right side
    13,378.44x = 92,513,062.04
  5. Step 5: Solve for x
    x = 92,513,062.04/13,378.44
  6. Step 6: Final answer
    x = 6,915.09

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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.