Home / 13,431.04-20,135.46-5,929.26

Finding the Fourth Proportional to 13,431.04, 20,135.46 and 5,929.26

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Solution

The fourth proportional to 13,431.04, 20,135.46 and 5,929.26 is: 8,888.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.04 : 20,135.46 = 5,929.26 : x
  2. Step 2: Convert to fraction form
    13,431.04/20,135.46 = 5,929.26/x
  3. Step 3: Cross multiply
    13,431.04x = 20,135.46 × 5,929.26
  4. Step 4: Simplify right side
    13,431.04x = 119,388,377.56
  5. Step 5: Solve for x
    x = 119,388,377.56/13,431.04
  6. Step 6: Final answer
    x = 8,888.99

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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.