Home / 13,867.66-19,137.36-7,899.27

Finding the Fourth Proportional to 13,867.66, 19,137.36 and 7,899.27

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Solution

The fourth proportional to 13,867.66, 19,137.36 and 7,899.27 is: 10,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.66 : 19,137.36 = 7,899.27 : x
  2. Step 2: Convert to fraction form
    13,867.66/19,137.36 = 7,899.27/x
  3. Step 3: Cross multiply
    13,867.66x = 19,137.36 × 7,899.27
  4. Step 4: Simplify right side
    13,867.66x = 151,171,239.23
  5. Step 5: Solve for x
    x = 151,171,239.23/13,867.66
  6. Step 6: Final answer
    x = 10,900.99

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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.