Home / 12,963.96-19,438.95-4,639.41

Finding the Fourth Proportional to 12,963.96, 19,438.95 and 4,639.41

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Solution

The fourth proportional to 12,963.96, 19,438.95 and 4,639.41 is: 6,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.96 : 19,438.95 = 4,639.41 : x
  2. Step 2: Convert to fraction form
    12,963.96/19,438.95 = 4,639.41/x
  3. Step 3: Cross multiply
    12,963.96x = 19,438.95 × 4,639.41
  4. Step 4: Simplify right side
    12,963.96x = 90,185,259.02
  5. Step 5: Solve for x
    x = 90,185,259.02/12,963.96
  6. Step 6: Final answer
    x = 6,956.61

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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.