Home / 9,315.30-13,968.54-3,388.06

Finding the Fourth Proportional to 9,315.30, 13,968.54 and 3,388.06

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Solution

The fourth proportional to 9,315.30, 13,968.54 and 3,388.06 is: 5,080.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.30 : 13,968.54 = 3,388.06 : x
  2. Step 2: Convert to fraction form
    9,315.30/13,968.54 = 3,388.06/x
  3. Step 3: Cross multiply
    9,315.30x = 13,968.54 × 3,388.06
  4. Step 4: Simplify right side
    9,315.30x = 47,326,251.63
  5. Step 5: Solve for x
    x = 47,326,251.63/9,315.30
  6. Step 6: Final answer
    x = 5,080.49

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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.