Home / 13,379.17-18,464.30-7,411.41

Finding the Fourth Proportional to 13,379.17, 18,464.30 and 7,411.41

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Solution

The fourth proportional to 13,379.17, 18,464.30 and 7,411.41 is: 10,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.17 : 18,464.30 = 7,411.41 : x
  2. Step 2: Convert to fraction form
    13,379.17/18,464.30 = 7,411.41/x
  3. Step 3: Cross multiply
    13,379.17x = 18,464.30 × 7,411.41
  4. Step 4: Simplify right side
    13,379.17x = 136,846,497.66
  5. Step 5: Solve for x
    x = 136,846,497.66/13,379.17
  6. Step 6: Final answer
    x = 10,228.32

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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.