Home / 15,735.03-21,716.42-9,447.81

Finding the Fourth Proportional to 15,735.03, 21,716.42 and 9,447.81

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Solution

The fourth proportional to 15,735.03, 21,716.42 and 9,447.81 is: 13,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,735.03 : 21,716.42 = 9,447.81 : x
  2. Step 2: Convert to fraction form
    15,735.03/21,716.42 = 9,447.81/x
  3. Step 3: Cross multiply
    15,735.03x = 21,716.42 × 9,447.81
  4. Step 4: Simplify right side
    15,735.03x = 205,172,562.80
  5. Step 5: Solve for x
    x = 205,172,562.80/15,735.03
  6. Step 6: Final answer
    x = 13,039.22

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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.