Home / 13,878.36-19,152.30-8,212.95

Finding the Fourth Proportional to 13,878.36, 19,152.30 and 8,212.95

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Solution

The fourth proportional to 13,878.36, 19,152.30 and 8,212.95 is: 11,333.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.36 : 19,152.30 = 8,212.95 : x
  2. Step 2: Convert to fraction form
    13,878.36/19,152.30 = 8,212.95/x
  3. Step 3: Cross multiply
    13,878.36x = 19,152.30 × 8,212.95
  4. Step 4: Simplify right side
    13,878.36x = 157,296,882.29
  5. Step 5: Solve for x
    x = 157,296,882.29/13,878.36
  6. Step 6: Final answer
    x = 11,333.97

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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.