Home / 13,935.50-19,231.02-7,647.86

Finding the Fourth Proportional to 13,935.50, 19,231.02 and 7,647.86

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Solution

The fourth proportional to 13,935.50, 19,231.02 and 7,647.86 is: 10,554.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.50 : 19,231.02 = 7,647.86 : x
  2. Step 2: Convert to fraction form
    13,935.50/19,231.02 = 7,647.86/x
  3. Step 3: Cross multiply
    13,935.50x = 19,231.02 × 7,647.86
  4. Step 4: Simplify right side
    13,935.50x = 147,076,148.62
  5. Step 5: Solve for x
    x = 147,076,148.62/13,935.50
  6. Step 6: Final answer
    x = 10,554.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.