Home / 12,237.78-16,896.27-9,400.08

Finding the Fourth Proportional to 12,237.78, 16,896.27 and 9,400.08

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Solution

The fourth proportional to 12,237.78, 16,896.27 and 9,400.08 is: 12,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.78 : 16,896.27 = 9,400.08 : x
  2. Step 2: Convert to fraction form
    12,237.78/16,896.27 = 9,400.08/x
  3. Step 3: Cross multiply
    12,237.78x = 16,896.27 × 9,400.08
  4. Step 4: Simplify right side
    12,237.78x = 158,826,289.70
  5. Step 5: Solve for x
    x = 158,826,289.70/12,237.78
  6. Step 6: Final answer
    x = 12,978.36

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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.