Home / 12,905.88-19,360.74-4,019.16

Finding the Fourth Proportional to 12,905.88, 19,360.74 and 4,019.16

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Solution

The fourth proportional to 12,905.88, 19,360.74 and 4,019.16 is: 6,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.88 : 19,360.74 = 4,019.16 : x
  2. Step 2: Convert to fraction form
    12,905.88/19,360.74 = 4,019.16/x
  3. Step 3: Cross multiply
    12,905.88x = 19,360.74 × 4,019.16
  4. Step 4: Simplify right side
    12,905.88x = 77,813,911.78
  5. Step 5: Solve for x
    x = 77,813,911.78/12,905.88
  6. Step 6: Final answer
    x = 6,029.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.