Home / 14,028.73-19,358.30-7,740.70

Finding the Fourth Proportional to 14,028.73, 19,358.30 and 7,740.70

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Solution

The fourth proportional to 14,028.73, 19,358.30 and 7,740.70 is: 10,681.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.73 : 19,358.30 = 7,740.70 : x
  2. Step 2: Convert to fraction form
    14,028.73/19,358.30 = 7,740.70/x
  3. Step 3: Cross multiply
    14,028.73x = 19,358.30 × 7,740.70
  4. Step 4: Simplify right side
    14,028.73x = 149,846,792.81
  5. Step 5: Solve for x
    x = 149,846,792.81/14,028.73
  6. Step 6: Final answer
    x = 10,681.42

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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.