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Finding the Fourth Proportional to 9,969.93, 14,946.40 and 4,420.25

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Solution

The fourth proportional to 9,969.93, 14,946.40 and 4,420.25 is: 6,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969.93 : 14,946.40 = 4,420.25 : x
  2. Step 2: Convert to fraction form
    9,969.93/14,946.40 = 4,420.25/x
  3. Step 3: Cross multiply
    9,969.93x = 14,946.40 × 4,420.25
  4. Step 4: Simplify right side
    9,969.93x = 66,066,824.60
  5. Step 5: Solve for x
    x = 66,066,824.60/9,969.93
  6. Step 6: Final answer
    x = 6,626.61

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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.