Home / 18,817.81-28,216.63-6,333.69

Finding the Fourth Proportional to 18,817.81, 28,216.63 and 6,333.69

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Solution

The fourth proportional to 18,817.81, 28,216.63 and 6,333.69 is: 9,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.81 : 28,216.63 = 6,333.69 : x
  2. Step 2: Convert to fraction form
    18,817.81/28,216.63 = 6,333.69/x
  3. Step 3: Cross multiply
    18,817.81x = 28,216.63 × 6,333.69
  4. Step 4: Simplify right side
    18,817.81x = 178,715,387.26
  5. Step 5: Solve for x
    x = 178,715,387.26/18,817.81
  6. Step 6: Final answer
    x = 9,497.14

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1.5x scale

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.