Home / 15,795.12-21,813.66-12,018.36

Finding the Fourth Proportional to 15,795.12, 21,813.66 and 12,018.36

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Solution

The fourth proportional to 15,795.12, 21,813.66 and 12,018.36 is: 16,597.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,795.12 : 21,813.66 = 12,018.36 : x
  2. Step 2: Convert to fraction form
    15,795.12/21,813.66 = 12,018.36/x
  3. Step 3: Cross multiply
    15,795.12x = 21,813.66 × 12,018.36
  4. Step 4: Simplify right side
    15,795.12x = 262,164,418.80
  5. Step 5: Solve for x
    x = 262,164,418.80/15,795.12
  6. Step 6: Final answer
    x = 16,597.81

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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.