Home / 13,280.56-19,914.36-7,735.84

Finding the Fourth Proportional to 13,280.56, 19,914.36 and 7,735.84

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Solution

The fourth proportional to 13,280.56, 19,914.36 and 7,735.84 is: 11,599.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.56 : 19,914.36 = 7,735.84 : x
  2. Step 2: Convert to fraction form
    13,280.56/19,914.36 = 7,735.84/x
  3. Step 3: Cross multiply
    13,280.56x = 19,914.36 × 7,735.84
  4. Step 4: Simplify right side
    13,280.56x = 154,054,302.66
  5. Step 5: Solve for x
    x = 154,054,302.66/13,280.56
  6. Step 6: Final answer
    x = 11,599.99

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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.