Home / 13,310.84-19,968.54-5,515.40

Finding the Fourth Proportional to 13,310.84, 19,968.54 and 5,515.40

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Solution

The fourth proportional to 13,310.84, 19,968.54 and 5,515.40 is: 8,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.84 : 19,968.54 = 5,515.40 : x
  2. Step 2: Convert to fraction form
    13,310.84/19,968.54 = 5,515.40/x
  3. Step 3: Cross multiply
    13,310.84x = 19,968.54 × 5,515.40
  4. Step 4: Simplify right side
    13,310.84x = 110,134,485.52
  5. Step 5: Solve for x
    x = 110,134,485.52/13,310.84
  6. Step 6: Final answer
    x = 8,274.04

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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.