Home / 13,199.98-19,801.26-3,840.08

Finding the Fourth Proportional to 13,199.98, 19,801.26 and 3,840.08

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Solution

The fourth proportional to 13,199.98, 19,801.26 and 3,840.08 is: 5,760.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.98 : 19,801.26 = 3,840.08 : x
  2. Step 2: Convert to fraction form
    13,199.98/19,801.26 = 3,840.08/x
  3. Step 3: Cross multiply
    13,199.98x = 19,801.26 × 3,840.08
  4. Step 4: Simplify right side
    13,199.98x = 76,038,422.50
  5. Step 5: Solve for x
    x = 76,038,422.50/13,199.98
  6. Step 6: Final answer
    x = 5,760.50

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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.