Home / 13,919.67-19,209.29-7,950.51

Finding the Fourth Proportional to 13,919.67, 19,209.29 and 7,950.51

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Solution

The fourth proportional to 13,919.67, 19,209.29 and 7,950.51 is: 10,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.67 : 19,209.29 = 7,950.51 : x
  2. Step 2: Convert to fraction form
    13,919.67/19,209.29 = 7,950.51/x
  3. Step 3: Cross multiply
    13,919.67x = 19,209.29 × 7,950.51
  4. Step 4: Simplify right side
    13,919.67x = 152,723,612.49
  5. Step 5: Solve for x
    x = 152,723,612.49/13,919.67
  6. Step 6: Final answer
    x = 10,971.78

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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.