Home / 15,209.07-20,987.51-11,626.44

Finding the Fourth Proportional to 15,209.07, 20,987.51 and 11,626.44

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Solution

The fourth proportional to 15,209.07, 20,987.51 and 11,626.44 is: 16,043.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209.07 : 20,987.51 = 11,626.44 : x
  2. Step 2: Convert to fraction form
    15,209.07/20,987.51 = 11,626.44/x
  3. Step 3: Cross multiply
    15,209.07x = 20,987.51 × 11,626.44
  4. Step 4: Simplify right side
    15,209.07x = 244,009,888.93
  5. Step 5: Solve for x
    x = 244,009,888.93/15,209.07
  6. Step 6: Final answer
    x = 16,043.71

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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.