Home / 13,485.84-20,227.32-4,720.92

Finding the Fourth Proportional to 13,485.84, 20,227.32 and 4,720.92

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Solution

The fourth proportional to 13,485.84, 20,227.32 and 4,720.92 is: 7,080.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.84 : 20,227.32 = 4,720.92 : x
  2. Step 2: Convert to fraction form
    13,485.84/20,227.32 = 4,720.92/x
  3. Step 3: Cross multiply
    13,485.84x = 20,227.32 × 4,720.92
  4. Step 4: Simplify right side
    13,485.84x = 95,491,559.53
  5. Step 5: Solve for x
    x = 95,491,559.53/13,485.84
  6. Step 6: Final answer
    x = 7,080.88

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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.