Home / 13,916.66-19,206.60-7,949.19

Finding the Fourth Proportional to 13,916.66, 19,206.60 and 7,949.19

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Solution

The fourth proportional to 13,916.66, 19,206.60 and 7,949.19 is: 10,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.66 : 19,206.60 = 7,949.19 : x
  2. Step 2: Convert to fraction form
    13,916.66/19,206.60 = 7,949.19/x
  3. Step 3: Cross multiply
    13,916.66x = 19,206.60 × 7,949.19
  4. Step 4: Simplify right side
    13,916.66x = 152,676,912.65
  5. Step 5: Solve for x
    x = 152,676,912.65/13,916.66
  6. Step 6: Final answer
    x = 10,970.80

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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.