Home / 13,528.94-20,287.02-7,908.22

Finding the Fourth Proportional to 13,528.94, 20,287.02 and 7,908.22

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Solution

The fourth proportional to 13,528.94, 20,287.02 and 7,908.22 is: 11,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.94 : 20,287.02 = 7,908.22 : x
  2. Step 2: Convert to fraction form
    13,528.94/20,287.02 = 7,908.22/x
  3. Step 3: Cross multiply
    13,528.94x = 20,287.02 × 7,908.22
  4. Step 4: Simplify right side
    13,528.94x = 160,434,217.30
  5. Step 5: Solve for x
    x = 160,434,217.30/13,528.94
  6. Step 6: Final answer
    x = 11,858.59

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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.