Home / 15,106.69-20,843.49-9,432.64

Finding the Fourth Proportional to 15,106.69, 20,843.49 and 9,432.64

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Solution

The fourth proportional to 15,106.69, 20,843.49 and 9,432.64 is: 13,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.69 : 20,843.49 = 9,432.64 : x
  2. Step 2: Convert to fraction form
    15,106.69/20,843.49 = 9,432.64/x
  3. Step 3: Cross multiply
    15,106.69x = 20,843.49 × 9,432.64
  4. Step 4: Simplify right side
    15,106.69x = 196,609,137.51
  5. Step 5: Solve for x
    x = 196,609,137.51/15,106.69
  6. Step 6: Final answer
    x = 13,014.71

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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.