Home / 14,138.96-21,210.26-7,556.09

Finding the Fourth Proportional to 14,138.96, 21,210.26 and 7,556.09

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Solution

The fourth proportional to 14,138.96, 21,210.26 and 7,556.09 is: 11,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.96 : 21,210.26 = 7,556.09 : x
  2. Step 2: Convert to fraction form
    14,138.96/21,210.26 = 7,556.09/x
  3. Step 3: Cross multiply
    14,138.96x = 21,210.26 × 7,556.09
  4. Step 4: Simplify right side
    14,138.96x = 160,266,489.65
  5. Step 5: Solve for x
    x = 160,266,489.65/14,138.96
  6. Step 6: Final answer
    x = 11,335.10

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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.