Home / 15,615.99-21,546.62-9,567.51

Finding the Fourth Proportional to 15,615.99, 21,546.62 and 9,567.51

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Solution

The fourth proportional to 15,615.99, 21,546.62 and 9,567.51 is: 13,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.99 : 21,546.62 = 9,567.51 : x
  2. Step 2: Convert to fraction form
    15,615.99/21,546.62 = 9,567.51/x
  3. Step 3: Cross multiply
    15,615.99x = 21,546.62 × 9,567.51
  4. Step 4: Simplify right side
    15,615.99x = 206,147,571.16
  5. Step 5: Solve for x
    x = 206,147,571.16/15,615.99
  6. Step 6: Final answer
    x = 13,201.05

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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.