Home / 14,645.75-21,955.26-5,278.10

Finding the Fourth Proportional to 14,645.75, 21,955.26 and 5,278.10

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Solution

The fourth proportional to 14,645.75, 21,955.26 and 5,278.10 is: 7,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.75 : 21,955.26 = 5,278.10 : x
  2. Step 2: Convert to fraction form
    14,645.75/21,955.26 = 5,278.10/x
  3. Step 3: Cross multiply
    14,645.75x = 21,955.26 × 5,278.10
  4. Step 4: Simplify right side
    14,645.75x = 115,882,057.81
  5. Step 5: Solve for x
    x = 115,882,057.81/14,645.75
  6. Step 6: Final answer
    x = 7,912.33

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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.