Home / 9,780.21-14,668.68-3,539.04

Finding the Fourth Proportional to 9,780.21, 14,668.68 and 3,539.04

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Solution

The fourth proportional to 9,780.21, 14,668.68 and 3,539.04 is: 5,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.21 : 14,668.68 = 3,539.04 : x
  2. Step 2: Convert to fraction form
    9,780.21/14,668.68 = 3,539.04/x
  3. Step 3: Cross multiply
    9,780.21x = 14,668.68 × 3,539.04
  4. Step 4: Simplify right side
    9,780.21x = 51,913,045.27
  5. Step 5: Solve for x
    x = 51,913,045.27/9,780.21
  6. Step 6: Final answer
    x = 5,307.97

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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.