Home / 13,387.08-20,080.79-3,526.44

Finding the Fourth Proportional to 13,387.08, 20,080.79 and 3,526.44

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Solution

The fourth proportional to 13,387.08, 20,080.79 and 3,526.44 is: 5,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.08 : 20,080.79 = 3,526.44 : x
  2. Step 2: Convert to fraction form
    13,387.08/20,080.79 = 3,526.44/x
  3. Step 3: Cross multiply
    13,387.08x = 20,080.79 × 3,526.44
  4. Step 4: Simplify right side
    13,387.08x = 70,813,701.09
  5. Step 5: Solve for x
    x = 70,813,701.09/13,387.08
  6. Step 6: Final answer
    x = 5,289.70

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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.