Home / 13,024.26-17,971.20-7,720.38

Finding the Fourth Proportional to 13,024.26, 17,971.20 and 7,720.38

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Solution

The fourth proportional to 13,024.26, 17,971.20 and 7,720.38 is: 10,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,024.26 : 17,971.20 = 7,720.38 : x
  2. Step 2: Convert to fraction form
    13,024.26/17,971.20 = 7,720.38/x
  3. Step 3: Cross multiply
    13,024.26x = 17,971.20 × 7,720.38
  4. Step 4: Simplify right side
    13,024.26x = 138,744,493.06
  5. Step 5: Solve for x
    x = 138,744,493.06/13,024.26
  6. Step 6: Final answer
    x = 10,652.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.