Home / 13,919.50-19,210.13-7,633.09

Finding the Fourth Proportional to 13,919.50, 19,210.13 and 7,633.09

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Solution

The fourth proportional to 13,919.50, 19,210.13 and 7,633.09 is: 10,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.50 : 19,210.13 = 7,633.09 : x
  2. Step 2: Convert to fraction form
    13,919.50/19,210.13 = 7,633.09/x
  3. Step 3: Cross multiply
    13,919.50x = 19,210.13 × 7,633.09
  4. Step 4: Simplify right side
    13,919.50x = 146,632,651.20
  5. Step 5: Solve for x
    x = 146,632,651.20/13,919.50
  6. Step 6: Final answer
    x = 10,534.33

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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.