Home / 9,038.90-13,561.41-4,879.31

Finding the Fourth Proportional to 9,038.90, 13,561.41 and 4,879.31

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Solution

The fourth proportional to 9,038.90, 13,561.41 and 4,879.31 is: 7,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,038.90 : 13,561.41 = 4,879.31 : x
  2. Step 2: Convert to fraction form
    9,038.90/13,561.41 = 4,879.31/x
  3. Step 3: Cross multiply
    9,038.90x = 13,561.41 × 4,879.31
  4. Step 4: Simplify right side
    9,038.90x = 66,170,323.43
  5. Step 5: Solve for x
    x = 66,170,323.43/9,038.90
  6. Step 6: Final answer
    x = 7,320.62

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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.