Home / 13,138.64-19,695.43-4,367.41

Finding the Fourth Proportional to 13,138.64, 19,695.43 and 4,367.41

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Solution

The fourth proportional to 13,138.64, 19,695.43 and 4,367.41 is: 6,546.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.64 : 19,695.43 = 4,367.41 : x
  2. Step 2: Convert to fraction form
    13,138.64/19,695.43 = 4,367.41/x
  3. Step 3: Cross multiply
    13,138.64x = 19,695.43 × 4,367.41
  4. Step 4: Simplify right side
    13,138.64x = 86,018,017.94
  5. Step 5: Solve for x
    x = 86,018,017.94/13,138.64
  6. Step 6: Final answer
    x = 6,546.95

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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.