Home / 13,867.49-19,137.17-7,899.41

Finding the Fourth Proportional to 13,867.49, 19,137.17 and 7,899.41

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Solution

The fourth proportional to 13,867.49, 19,137.17 and 7,899.41 is: 10,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.49 : 19,137.17 = 7,899.41 : x
  2. Step 2: Convert to fraction form
    13,867.49/19,137.17 = 7,899.41/x
  3. Step 3: Cross multiply
    13,867.49x = 19,137.17 × 7,899.41
  4. Step 4: Simplify right side
    13,867.49x = 151,172,352.07
  5. Step 5: Solve for x
    x = 151,172,352.07/13,867.49
  6. Step 6: Final answer
    x = 10,901.21

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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.