Home / 13,838.72-20,650.95-12,362.00

Finding the Fourth Proportional to 13,838.72, 20,650.95 and 12,362.00

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Solution

The fourth proportional to 13,838.72, 20,650.95 and 12,362.00 is: 18,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.72 : 20,650.95 = 12,362.00 : x
  2. Step 2: Convert to fraction form
    13,838.72/20,650.95 = 12,362.00/x
  3. Step 3: Cross multiply
    13,838.72x = 20,650.95 × 12,362.00
  4. Step 4: Simplify right side
    13,838.72x = 255,286,987.00
  5. Step 5: Solve for x
    x = 255,286,987.00/13,838.72
  6. Step 6: Final answer
    x = 18,447.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.