Home / 13,916.80-19,205.34-7,949.26

Finding the Fourth Proportional to 13,916.80, 19,205.34 and 7,949.26

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Solution

The fourth proportional to 13,916.80, 19,205.34 and 7,949.26 is: 10,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.80 : 19,205.34 = 7,949.26 : x
  2. Step 2: Convert to fraction form
    13,916.80/19,205.34 = 7,949.26/x
  3. Step 3: Cross multiply
    13,916.80x = 19,205.34 × 7,949.26
  4. Step 4: Simplify right side
    13,916.80x = 152,668,241.05
  5. Step 5: Solve for x
    x = 152,668,241.05/13,916.80
  6. Step 6: Final answer
    x = 10,970.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.