Home / 12,911.84-19,363.52-4,144.68

Finding the Fourth Proportional to 12,911.84, 19,363.52 and 4,144.68

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Solution

The fourth proportional to 12,911.84, 19,363.52 and 4,144.68 is: 6,215.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.84 : 19,363.52 = 4,144.68 : x
  2. Step 2: Convert to fraction form
    12,911.84/19,363.52 = 4,144.68/x
  3. Step 3: Cross multiply
    12,911.84x = 19,363.52 × 4,144.68
  4. Step 4: Simplify right side
    12,911.84x = 80,255,594.07
  5. Step 5: Solve for x
    x = 80,255,594.07/12,911.84
  6. Step 6: Final answer
    x = 6,215.66

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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.