Home / 13,583.28-18,732.96-9,805.44

Finding the Fourth Proportional to 13,583.28, 18,732.96 and 9,805.44

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Solution

The fourth proportional to 13,583.28, 18,732.96 and 9,805.44 is: 13,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.28 : 18,732.96 = 9,805.44 : x
  2. Step 2: Convert to fraction form
    13,583.28/18,732.96 = 9,805.44/x
  3. Step 3: Cross multiply
    13,583.28x = 18,732.96 × 9,805.44
  4. Step 4: Simplify right side
    13,583.28x = 183,684,915.30
  5. Step 5: Solve for x
    x = 183,684,915.30/13,583.28
  6. Step 6: Final answer
    x = 13,522.87

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1.5x scale

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.