Home / 8,668.11-11,961.12-4,890.93

Finding the Fourth Proportional to 8,668.11, 11,961.12 and 4,890.93

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Solution

The fourth proportional to 8,668.11, 11,961.12 and 4,890.93 is: 6,748.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.11 : 11,961.12 = 4,890.93 : x
  2. Step 2: Convert to fraction form
    8,668.11/11,961.12 = 4,890.93/x
  3. Step 3: Cross multiply
    8,668.11x = 11,961.12 × 4,890.93
  4. Step 4: Simplify right side
    8,668.11x = 58,501,000.64
  5. Step 5: Solve for x
    x = 58,501,000.64/8,668.11
  6. Step 6: Final answer
    x = 6,748.99

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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.