Home / 13,971.24-19,289.16-8,671.68

Finding the Fourth Proportional to 13,971.24, 19,289.16 and 8,671.68

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Solution

The fourth proportional to 13,971.24, 19,289.16 and 8,671.68 is: 11,972.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.24 : 19,289.16 = 8,671.68 : x
  2. Step 2: Convert to fraction form
    13,971.24/19,289.16 = 8,671.68/x
  3. Step 3: Cross multiply
    13,971.24x = 19,289.16 × 8,671.68
  4. Step 4: Simplify right side
    13,971.24x = 167,269,422.99
  5. Step 5: Solve for x
    x = 167,269,422.99/13,971.24
  6. Step 6: Final answer
    x = 11,972.41

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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.