Home / 13,108.53-19,615.47-11,281.68

Finding the Fourth Proportional to 13,108.53, 19,615.47 and 11,281.68

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Solution

The fourth proportional to 13,108.53, 19,615.47 and 11,281.68 is: 16,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.53 : 19,615.47 = 11,281.68 : x
  2. Step 2: Convert to fraction form
    13,108.53/19,615.47 = 11,281.68/x
  3. Step 3: Cross multiply
    13,108.53x = 19,615.47 × 11,281.68
  4. Step 4: Simplify right side
    13,108.53x = 221,295,413.28
  5. Step 5: Solve for x
    x = 221,295,413.28/13,108.53
  6. Step 6: Final answer
    x = 16,881.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.