Home / 15,963.09-22,017.74-13,556.45

Finding the Fourth Proportional to 15,963.09, 22,017.74 and 13,556.45

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Solution

The fourth proportional to 15,963.09, 22,017.74 and 13,556.45 is: 18,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.09 : 22,017.74 = 13,556.45 : x
  2. Step 2: Convert to fraction form
    15,963.09/22,017.74 = 13,556.45/x
  3. Step 3: Cross multiply
    15,963.09x = 22,017.74 × 13,556.45
  4. Step 4: Simplify right side
    15,963.09x = 298,482,213.55
  5. Step 5: Solve for x
    x = 298,482,213.55/15,963.09
  6. Step 6: Final answer
    x = 18,698.27

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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.