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Finding the Fourth Proportional to 6,650.14, 9,978.58 and 4,430.49

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Solution

The fourth proportional to 6,650.14, 9,978.58 and 4,430.49 is: 6,647.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.14 : 9,978.58 = 4,430.49 : x
  2. Step 2: Convert to fraction form
    6,650.14/9,978.58 = 4,430.49/x
  3. Step 3: Cross multiply
    6,650.14x = 9,978.58 × 4,430.49
  4. Step 4: Simplify right side
    6,650.14x = 44,209,926.86
  5. Step 5: Solve for x
    x = 44,209,926.86/6,650.14
  6. Step 6: Final answer
    x = 6,647.97

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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.