Home / 14,129.51-21,201.16-5,812.03

Finding the Fourth Proportional to 14,129.51, 21,201.16 and 5,812.03

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Solution

The fourth proportional to 14,129.51, 21,201.16 and 5,812.03 is: 8,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.51 : 21,201.16 = 5,812.03 : x
  2. Step 2: Convert to fraction form
    14,129.51/21,201.16 = 5,812.03/x
  3. Step 3: Cross multiply
    14,129.51x = 21,201.16 × 5,812.03
  4. Step 4: Simplify right side
    14,129.51x = 123,221,710.42
  5. Step 5: Solve for x
    x = 123,221,710.42/14,129.51
  6. Step 6: Final answer
    x = 8,720.87

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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.