Home / 14,629.20-21,938.40-4,768.80

Finding the Fourth Proportional to 14,629.20, 21,938.40 and 4,768.80

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Solution

The fourth proportional to 14,629.20, 21,938.40 and 4,768.80 is: 7,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.20 : 21,938.40 = 4,768.80 : x
  2. Step 2: Convert to fraction form
    14,629.20/21,938.40 = 4,768.80/x
  3. Step 3: Cross multiply
    14,629.20x = 21,938.40 × 4,768.80
  4. Step 4: Simplify right side
    14,629.20x = 104,619,841.92
  5. Step 5: Solve for x
    x = 104,619,841.92/14,629.20
  6. Step 6: Final answer
    x = 7,151.44

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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.