Home / 8,817.08-13,215.90-3,618.50

Finding the Fourth Proportional to 8,817.08, 13,215.90 and 3,618.50

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Solution

The fourth proportional to 8,817.08, 13,215.90 and 3,618.50 is: 5,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.08 : 13,215.90 = 3,618.50 : x
  2. Step 2: Convert to fraction form
    8,817.08/13,215.90 = 3,618.50/x
  3. Step 3: Cross multiply
    8,817.08x = 13,215.90 × 3,618.50
  4. Step 4: Simplify right side
    8,817.08x = 47,821,734.15
  5. Step 5: Solve for x
    x = 47,821,734.15/8,817.08
  6. Step 6: Final answer
    x = 5,423.76

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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.