Home / 11,964.08-16,501.86-8,778.36

Finding the Fourth Proportional to 11,964.08, 16,501.86 and 8,778.36

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Solution

The fourth proportional to 11,964.08, 16,501.86 and 8,778.36 is: 12,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.08 : 16,501.86 = 8,778.36 : x
  2. Step 2: Convert to fraction form
    11,964.08/16,501.86 = 8,778.36/x
  3. Step 3: Cross multiply
    11,964.08x = 16,501.86 × 8,778.36
  4. Step 4: Simplify right side
    11,964.08x = 144,859,267.75
  5. Step 5: Solve for x
    x = 144,859,267.75/11,964.08
  6. Step 6: Final answer
    x = 12,107.85

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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.