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Finding the Fourth Proportional to 8,814.95, 13,213.14 and 2,890.30

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Solution

The fourth proportional to 8,814.95, 13,213.14 and 2,890.30 is: 4,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.95 : 13,213.14 = 2,890.30 : x
  2. Step 2: Convert to fraction form
    8,814.95/13,213.14 = 2,890.30/x
  3. Step 3: Cross multiply
    8,814.95x = 13,213.14 × 2,890.30
  4. Step 4: Simplify right side
    8,814.95x = 38,189,879.96
  5. Step 5: Solve for x
    x = 38,189,879.96/8,814.95
  6. Step 6: Final answer
    x = 4,332.40

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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.