Home / 13,981.02-20,967-4,618.86

Finding the Fourth Proportional to 13,981.02, 20,967 and 4,618.86

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Solution

The fourth proportional to 13,981.02, 20,967 and 4,618.86 is: 6,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.02 : 20,967 = 4,618.86 : x
  2. Step 2: Convert to fraction form
    13,981.02/20,967 = 4,618.86/x
  3. Step 3: Cross multiply
    13,981.02x = 20,967 × 4,618.86
  4. Step 4: Simplify right side
    13,981.02x = 96,843,637.62
  5. Step 5: Solve for x
    x = 96,843,637.62/13,981.02
  6. Step 6: Final answer
    x = 6,926.79

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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.