Home / 9,128.03-13,689.30-4,743.09

Finding the Fourth Proportional to 9,128.03, 13,689.30 and 4,743.09

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Solution

The fourth proportional to 9,128.03, 13,689.30 and 4,743.09 is: 7,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.03 : 13,689.30 = 4,743.09 : x
  2. Step 2: Convert to fraction form
    9,128.03/13,689.30 = 4,743.09/x
  3. Step 3: Cross multiply
    9,128.03x = 13,689.30 × 4,743.09
  4. Step 4: Simplify right side
    9,128.03x = 64,929,581.94
  5. Step 5: Solve for x
    x = 64,929,581.94/9,128.03
  6. Step 6: Final answer
    x = 7,113.21

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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.