Home / 9,128.04-13,669.98-5,220.60

Finding the Fourth Proportional to 9,128.04, 13,669.98 and 5,220.60

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Solution

The fourth proportional to 9,128.04, 13,669.98 and 5,220.60 is: 7,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.04 : 13,669.98 = 5,220.60 : x
  2. Step 2: Convert to fraction form
    9,128.04/13,669.98 = 5,220.60/x
  3. Step 3: Cross multiply
    9,128.04x = 13,669.98 × 5,220.60
  4. Step 4: Simplify right side
    9,128.04x = 71,365,497.59
  5. Step 5: Solve for x
    x = 71,365,497.59/9,128.04
  6. Step 6: Final answer
    x = 7,818.27

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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.