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Finding the Fourth Proportional to 7,989.84, 11,024.91 and 4,845.42

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Solution

The fourth proportional to 7,989.84, 11,024.91 and 4,845.42 is: 6,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.84 : 11,024.91 = 4,845.42 : x
  2. Step 2: Convert to fraction form
    7,989.84/11,024.91 = 4,845.42/x
  3. Step 3: Cross multiply
    7,989.84x = 11,024.91 × 4,845.42
  4. Step 4: Simplify right side
    7,989.84x = 53,420,319.41
  5. Step 5: Solve for x
    x = 53,420,319.41/7,989.84
  6. Step 6: Final answer
    x = 6,686.03

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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.