Home / 14,148.75-21,190.81-6,758.44

Finding the Fourth Proportional to 14,148.75, 21,190.81 and 6,758.44

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Solution

The fourth proportional to 14,148.75, 21,190.81 and 6,758.44 is: 10,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.75 : 21,190.81 = 6,758.44 : x
  2. Step 2: Convert to fraction form
    14,148.75/21,190.81 = 6,758.44/x
  3. Step 3: Cross multiply
    14,148.75x = 21,190.81 × 6,758.44
  4. Step 4: Simplify right side
    14,148.75x = 143,216,748.06
  5. Step 5: Solve for x
    x = 143,216,748.06/14,148.75
  6. Step 6: Final answer
    x = 10,122.22

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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.