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Finding the Fourth Proportional to 6,662.04, 9,986.58 and 4,320.60

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Solution

The fourth proportional to 6,662.04, 9,986.58 and 4,320.60 is: 6,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.04 : 9,986.58 = 4,320.60 : x
  2. Step 2: Convert to fraction form
    6,662.04/9,986.58 = 4,320.60/x
  3. Step 3: Cross multiply
    6,662.04x = 9,986.58 × 4,320.60
  4. Step 4: Simplify right side
    6,662.04x = 43,148,017.55
  5. Step 5: Solve for x
    x = 43,148,017.55/6,662.04
  6. Step 6: Final answer
    x = 6,476.70

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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.