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Finding the Fourth Proportional to 11,235.49, 16,826.95 and 8,879.68

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Solution

The fourth proportional to 11,235.49, 16,826.95 and 8,879.68 is: 13,298.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.49 : 16,826.95 = 8,879.68 : x
  2. Step 2: Convert to fraction form
    11,235.49/16,826.95 = 8,879.68/x
  3. Step 3: Cross multiply
    11,235.49x = 16,826.95 × 8,879.68
  4. Step 4: Simplify right side
    11,235.49x = 149,417,963.51
  5. Step 5: Solve for x
    x = 149,417,963.51/11,235.49
  6. Step 6: Final answer
    x = 13,298.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.