Home / 12,738.42-19,108.12-6,071.48

Finding the Fourth Proportional to 12,738.42, 19,108.12 and 6,071.48

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Solution

The fourth proportional to 12,738.42, 19,108.12 and 6,071.48 is: 9,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.42 : 19,108.12 = 6,071.48 : x
  2. Step 2: Convert to fraction form
    12,738.42/19,108.12 = 6,071.48/x
  3. Step 3: Cross multiply
    12,738.42x = 19,108.12 × 6,071.48
  4. Step 4: Simplify right side
    12,738.42x = 116,014,568.42
  5. Step 5: Solve for x
    x = 116,014,568.42/12,738.42
  6. Step 6: Final answer
    x = 9,107.45

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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.