Home / 16,855.75-23,261.67-9,403.75

Finding the Fourth Proportional to 16,855.75, 23,261.67 and 9,403.75

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Solution

The fourth proportional to 16,855.75, 23,261.67 and 9,403.75 is: 12,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.75 : 23,261.67 = 9,403.75 : x
  2. Step 2: Convert to fraction form
    16,855.75/23,261.67 = 9,403.75/x
  3. Step 3: Cross multiply
    16,855.75x = 23,261.67 × 9,403.75
  4. Step 4: Simplify right side
    16,855.75x = 218,746,929.26
  5. Step 5: Solve for x
    x = 218,746,929.26/16,855.75
  6. Step 6: Final answer
    x = 12,977.59

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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.