Home / 14,061.51-21,078.27-7,824.36

Finding the Fourth Proportional to 14,061.51, 21,078.27 and 7,824.36

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Solution

The fourth proportional to 14,061.51, 21,078.27 and 7,824.36 is: 11,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,061.51 : 21,078.27 = 7,824.36 : x
  2. Step 2: Convert to fraction form
    14,061.51/21,078.27 = 7,824.36/x
  3. Step 3: Cross multiply
    14,061.51x = 21,078.27 × 7,824.36
  4. Step 4: Simplify right side
    14,061.51x = 164,923,972.66
  5. Step 5: Solve for x
    x = 164,923,972.66/14,061.51
  6. Step 6: Final answer
    x = 11,728.75

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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.