Home / 13,851.02-20,774.57-7,908.62

Finding the Fourth Proportional to 13,851.02, 20,774.57 and 7,908.62

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Solution

The fourth proportional to 13,851.02, 20,774.57 and 7,908.62 is: 11,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.02 : 20,774.57 = 7,908.62 : x
  2. Step 2: Convert to fraction form
    13,851.02/20,774.57 = 7,908.62/x
  3. Step 3: Cross multiply
    13,851.02x = 20,774.57 × 7,908.62
  4. Step 4: Simplify right side
    13,851.02x = 164,298,036.38
  5. Step 5: Solve for x
    x = 164,298,036.38/13,851.02
  6. Step 6: Final answer
    x = 11,861.80

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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.