Home / 13,821.48-19,093.86-11,955.24

Finding the Fourth Proportional to 13,821.48, 19,093.86 and 11,955.24

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Solution

The fourth proportional to 13,821.48, 19,093.86 and 11,955.24 is: 16,515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.48 : 19,093.86 = 11,955.24 : x
  2. Step 2: Convert to fraction form
    13,821.48/19,093.86 = 11,955.24/x
  3. Step 3: Cross multiply
    13,821.48x = 19,093.86 × 11,955.24
  4. Step 4: Simplify right side
    13,821.48x = 228,271,678.83
  5. Step 5: Solve for x
    x = 228,271,678.83/13,821.48
  6. Step 6: Final answer
    x = 16,515.72

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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.