Home / 11,054.91-16,590.39-8,289.03

Finding the Fourth Proportional to 11,054.91, 16,590.39 and 8,289.03

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Solution

The fourth proportional to 11,054.91, 16,590.39 and 8,289.03 is: 12,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,054.91 : 16,590.39 = 8,289.03 : x
  2. Step 2: Convert to fraction form
    11,054.91/16,590.39 = 8,289.03/x
  3. Step 3: Cross multiply
    11,054.91x = 16,590.39 × 8,289.03
  4. Step 4: Simplify right side
    11,054.91x = 137,518,271.55
  5. Step 5: Solve for x
    x = 137,518,271.55/11,054.91
  6. Step 6: Final answer
    x = 12,439.56

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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.