Home / 13,429.08-20,136.74-7,107.35

Finding the Fourth Proportional to 13,429.08, 20,136.74 and 7,107.35

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Solution

The fourth proportional to 13,429.08, 20,136.74 and 7,107.35 is: 10,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.08 : 20,136.74 = 7,107.35 : x
  2. Step 2: Convert to fraction form
    13,429.08/20,136.74 = 7,107.35/x
  3. Step 3: Cross multiply
    13,429.08x = 20,136.74 × 7,107.35
  4. Step 4: Simplify right side
    13,429.08x = 143,118,722.82
  5. Step 5: Solve for x
    x = 143,118,722.82/13,429.08
  6. Step 6: Final answer
    x = 10,657.37

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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.