Home / 15,843.93-21,858.23-9,125.97

Finding the Fourth Proportional to 15,843.93, 21,858.23 and 9,125.97

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Solution

The fourth proportional to 15,843.93, 21,858.23 and 9,125.97 is: 12,590.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,843.93 : 21,858.23 = 9,125.97 : x
  2. Step 2: Convert to fraction form
    15,843.93/21,858.23 = 9,125.97/x
  3. Step 3: Cross multiply
    15,843.93x = 21,858.23 × 9,125.97
  4. Step 4: Simplify right side
    15,843.93x = 199,477,466.41
  5. Step 5: Solve for x
    x = 199,477,466.41/15,843.93
  6. Step 6: Final answer
    x = 12,590.15

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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.