Home / 13,210.79-19,828.51-6,975.41

Finding the Fourth Proportional to 13,210.79, 19,828.51 and 6,975.41

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Solution

The fourth proportional to 13,210.79, 19,828.51 and 6,975.41 is: 10,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.79 : 19,828.51 = 6,975.41 : x
  2. Step 2: Convert to fraction form
    13,210.79/19,828.51 = 6,975.41/x
  3. Step 3: Cross multiply
    13,210.79x = 19,828.51 × 6,975.41
  4. Step 4: Simplify right side
    13,210.79x = 138,311,986.94
  5. Step 5: Solve for x
    x = 138,311,986.94/13,210.79
  6. Step 6: Final answer
    x = 10,469.62

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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.