Home / 14,078.92-19,425.63-8,415.50

Finding the Fourth Proportional to 14,078.92, 19,425.63 and 8,415.50

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Solution

The fourth proportional to 14,078.92, 19,425.63 and 8,415.50 is: 11,611.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.92 : 19,425.63 = 8,415.50 : x
  2. Step 2: Convert to fraction form
    14,078.92/19,425.63 = 8,415.50/x
  3. Step 3: Cross multiply
    14,078.92x = 19,425.63 × 8,415.50
  4. Step 4: Simplify right side
    14,078.92x = 163,476,389.27
  5. Step 5: Solve for x
    x = 163,476,389.27/14,078.92
  6. Step 6: Final answer
    x = 11,611.43

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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.