Home / 12,768.85-19,168.94-10,013.05

Finding the Fourth Proportional to 12,768.85, 19,168.94 and 10,013.05

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Solution

The fourth proportional to 12,768.85, 19,168.94 and 10,013.05 is: 15,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.85 : 19,168.94 = 10,013.05 : x
  2. Step 2: Convert to fraction form
    12,768.85/19,168.94 = 10,013.05/x
  3. Step 3: Cross multiply
    12,768.85x = 19,168.94 × 10,013.05
  4. Step 4: Simplify right side
    12,768.85x = 191,939,554.67
  5. Step 5: Solve for x
    x = 191,939,554.67/12,768.85
  6. Step 6: Final answer
    x = 15,031.86

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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.