Home / 13,919.86-19,209.27-7,632.22

Finding the Fourth Proportional to 13,919.86, 19,209.27 and 7,632.22

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Solution

The fourth proportional to 13,919.86, 19,209.27 and 7,632.22 is: 10,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.86 : 19,209.27 = 7,632.22 : x
  2. Step 2: Convert to fraction form
    13,919.86/19,209.27 = 7,632.22/x
  3. Step 3: Cross multiply
    13,919.86x = 19,209.27 × 7,632.22
  4. Step 4: Simplify right side
    13,919.86x = 146,609,374.68
  5. Step 5: Solve for x
    x = 146,609,374.68/13,919.86
  6. Step 6: Final answer
    x = 10,532.39

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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.