Home / 13,636.20-20,453.22-4,870.20

Finding the Fourth Proportional to 13,636.20, 20,453.22 and 4,870.20

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Solution

The fourth proportional to 13,636.20, 20,453.22 and 4,870.20 is: 7,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.20 : 20,453.22 = 4,870.20 : x
  2. Step 2: Convert to fraction form
    13,636.20/20,453.22 = 4,870.20/x
  3. Step 3: Cross multiply
    13,636.20x = 20,453.22 × 4,870.20
  4. Step 4: Simplify right side
    13,636.20x = 99,611,272.04
  5. Step 5: Solve for x
    x = 99,611,272.04/13,636.20
  6. Step 6: Final answer
    x = 7,304.91

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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.