Home / 13,987.06-20,980.62-3,598

Finding the Fourth Proportional to 13,987.06, 20,980.62 and 3,598

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Solution

The fourth proportional to 13,987.06, 20,980.62 and 3,598 is: 5,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.06 : 20,980.62 = 3,598 : x
  2. Step 2: Convert to fraction form
    13,987.06/20,980.62 = 3,598/x
  3. Step 3: Cross multiply
    13,987.06x = 20,980.62 × 3,598
  4. Step 4: Simplify right side
    13,987.06x = 75,488,270.76
  5. Step 5: Solve for x
    x = 75,488,270.76/13,987.06
  6. Step 6: Final answer
    x = 5,397.01

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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.