Home / 13,752.20-20,628.30-4,518.20

Finding the Fourth Proportional to 13,752.20, 20,628.30 and 4,518.20

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Solution

The fourth proportional to 13,752.20, 20,628.30 and 4,518.20 is: 6,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.20 : 20,628.30 = 4,518.20 : x
  2. Step 2: Convert to fraction form
    13,752.20/20,628.30 = 4,518.20/x
  3. Step 3: Cross multiply
    13,752.20x = 20,628.30 × 4,518.20
  4. Step 4: Simplify right side
    13,752.20x = 93,202,681.92
  5. Step 5: Solve for x
    x = 93,202,681.92/13,752.20
  6. Step 6: Final answer
    x = 6,777.29

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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.