Home / 10,754.81-16,134.45-5,420.98

Finding the Fourth Proportional to 10,754.81, 16,134.45 and 5,420.98

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Solution

The fourth proportional to 10,754.81, 16,134.45 and 5,420.98 is: 8,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,754.81 : 16,134.45 = 5,420.98 : x
  2. Step 2: Convert to fraction form
    10,754.81/16,134.45 = 5,420.98/x
  3. Step 3: Cross multiply
    10,754.81x = 16,134.45 × 5,420.98
  4. Step 4: Simplify right side
    10,754.81x = 87,464,530.60
  5. Step 5: Solve for x
    x = 87,464,530.60/10,754.81
  6. Step 6: Final answer
    x = 8,132.60

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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.