Home / 13,377.60-20,072.40-4,618.80

Finding the Fourth Proportional to 13,377.60, 20,072.40 and 4,618.80

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Solution

The fourth proportional to 13,377.60, 20,072.40 and 4,618.80 is: 6,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.60 : 20,072.40 = 4,618.80 : x
  2. Step 2: Convert to fraction form
    13,377.60/20,072.40 = 4,618.80/x
  3. Step 3: Cross multiply
    13,377.60x = 20,072.40 × 4,618.80
  4. Step 4: Simplify right side
    13,377.60x = 92,710,401.12
  5. Step 5: Solve for x
    x = 92,710,401.12/13,377.60
  6. Step 6: Final answer
    x = 6,930.27

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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.