Home / 15,828.93-21,846.60-9,118.44

Finding the Fourth Proportional to 15,828.93, 21,846.60 and 9,118.44

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Solution

The fourth proportional to 15,828.93, 21,846.60 and 9,118.44 is: 12,584.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,828.93 : 21,846.60 = 9,118.44 : x
  2. Step 2: Convert to fraction form
    15,828.93/21,846.60 = 9,118.44/x
  3. Step 3: Cross multiply
    15,828.93x = 21,846.60 × 9,118.44
  4. Step 4: Simplify right side
    15,828.93x = 199,206,911.30
  5. Step 5: Solve for x
    x = 199,206,911.30/15,828.93
  6. Step 6: Final answer
    x = 12,584.99

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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.