Home / 13,359.84-18,435.48-7,694.28

Finding the Fourth Proportional to 13,359.84, 18,435.48 and 7,694.28

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Solution

The fourth proportional to 13,359.84, 18,435.48 and 7,694.28 is: 10,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.84 : 18,435.48 = 7,694.28 : x
  2. Step 2: Convert to fraction form
    13,359.84/18,435.48 = 7,694.28/x
  3. Step 3: Cross multiply
    13,359.84x = 18,435.48 × 7,694.28
  4. Step 4: Simplify right side
    13,359.84x = 141,847,745.05
  5. Step 5: Solve for x
    x = 141,847,745.05/13,359.84
  6. Step 6: Final answer
    x = 10,617.47

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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.