Home / 13,280.73-19,914.74-7,735.65

Finding the Fourth Proportional to 13,280.73, 19,914.74 and 7,735.65

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Solution

The fourth proportional to 13,280.73, 19,914.74 and 7,735.65 is: 11,599.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.73 : 19,914.74 = 7,735.65 : x
  2. Step 2: Convert to fraction form
    13,280.73/19,914.74 = 7,735.65/x
  3. Step 3: Cross multiply
    13,280.73x = 19,914.74 × 7,735.65
  4. Step 4: Simplify right side
    13,280.73x = 154,053,419.80
  5. Step 5: Solve for x
    x = 154,053,419.80/13,280.73
  6. Step 6: Final answer
    x = 11,599.77

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1.5x scale

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.