Home / 8,912.85-13,356.45-5,009.01

Finding the Fourth Proportional to 8,912.85, 13,356.45 and 5,009.01

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Solution

The fourth proportional to 8,912.85, 13,356.45 and 5,009.01 is: 7,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.85 : 13,356.45 = 5,009.01 : x
  2. Step 2: Convert to fraction form
    8,912.85/13,356.45 = 5,009.01/x
  3. Step 3: Cross multiply
    8,912.85x = 13,356.45 × 5,009.01
  4. Step 4: Simplify right side
    8,912.85x = 66,902,591.61
  5. Step 5: Solve for x
    x = 66,902,591.61/8,912.85
  6. Step 6: Final answer
    x = 7,506.31

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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.