Home / 13,868.01-19,141.41-8,559.78

Finding the Fourth Proportional to 13,868.01, 19,141.41 and 8,559.78

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Solution

The fourth proportional to 13,868.01, 19,141.41 and 8,559.78 is: 11,814.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.01 : 19,141.41 = 8,559.78 : x
  2. Step 2: Convert to fraction form
    13,868.01/19,141.41 = 8,559.78/x
  3. Step 3: Cross multiply
    13,868.01x = 19,141.41 × 8,559.78
  4. Step 4: Simplify right side
    13,868.01x = 163,846,218.81
  5. Step 5: Solve for x
    x = 163,846,218.81/13,868.01
  6. Step 6: Final answer
    x = 11,814.69

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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.