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Finding the Fourth Proportional to 6,566.55, 9,849.90 and 1,636.20

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Solution

The fourth proportional to 6,566.55, 9,849.90 and 1,636.20 is: 2,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,566.55 : 9,849.90 = 1,636.20 : x
  2. Step 2: Convert to fraction form
    6,566.55/9,849.90 = 1,636.20/x
  3. Step 3: Cross multiply
    6,566.55x = 9,849.90 × 1,636.20
  4. Step 4: Simplify right side
    6,566.55x = 16,116,406.38
  5. Step 5: Solve for x
    x = 16,116,406.38/6,566.55
  6. Step 6: Final answer
    x = 2,454.32

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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.