Home / 15,907.86-21,927.78-12,119.04

Finding the Fourth Proportional to 15,907.86, 21,927.78 and 12,119.04

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Solution

The fourth proportional to 15,907.86, 21,927.78 and 12,119.04 is: 16,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.86 : 21,927.78 = 12,119.04 : x
  2. Step 2: Convert to fraction form
    15,907.86/21,927.78 = 12,119.04/x
  3. Step 3: Cross multiply
    15,907.86x = 21,927.78 × 12,119.04
  4. Step 4: Simplify right side
    15,907.86x = 265,743,642.93
  5. Step 5: Solve for x
    x = 265,743,642.93/15,907.86
  6. Step 6: Final answer
    x = 16,705.18

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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.