Home / 15,716.33-21,697.77-9,751.29

Finding the Fourth Proportional to 15,716.33, 21,697.77 and 9,751.29

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Solution

The fourth proportional to 15,716.33, 21,697.77 and 9,751.29 is: 13,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,716.33 : 21,697.77 = 9,751.29 : x
  2. Step 2: Convert to fraction form
    15,716.33/21,697.77 = 9,751.29/x
  3. Step 3: Cross multiply
    15,716.33x = 21,697.77 × 9,751.29
  4. Step 4: Simplify right side
    15,716.33x = 211,581,202.82
  5. Step 5: Solve for x
    x = 211,581,202.82/15,716.33
  6. Step 6: Final answer
    x = 13,462.51

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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.