Home / 13,698.01-18,886.04-11,177.56

Finding the Fourth Proportional to 13,698.01, 18,886.04 and 11,177.56

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Solution

The fourth proportional to 13,698.01, 18,886.04 and 11,177.56 is: 15,410.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.01 : 18,886.04 = 11,177.56 : x
  2. Step 2: Convert to fraction form
    13,698.01/18,886.04 = 11,177.56/x
  3. Step 3: Cross multiply
    13,698.01x = 18,886.04 × 11,177.56
  4. Step 4: Simplify right side
    13,698.01x = 211,099,750.83
  5. Step 5: Solve for x
    x = 211,099,750.83/13,698.01
  6. Step 6: Final answer
    x = 15,410.99

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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.