Home / 12,959.96-19,440.24-4,640.55

Finding the Fourth Proportional to 12,959.96, 19,440.24 and 4,640.55

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Solution

The fourth proportional to 12,959.96, 19,440.24 and 4,640.55 is: 6,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.96 : 19,440.24 = 4,640.55 : x
  2. Step 2: Convert to fraction form
    12,959.96/19,440.24 = 4,640.55/x
  3. Step 3: Cross multiply
    12,959.96x = 19,440.24 × 4,640.55
  4. Step 4: Simplify right side
    12,959.96x = 90,213,405.73
  5. Step 5: Solve for x
    x = 90,213,405.73/12,959.96
  6. Step 6: Final answer
    x = 6,960.93

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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.