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Finding the Fourth Proportional to 9,369.06, 12,946.44 and 8,913.60

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Solution

The fourth proportional to 9,369.06, 12,946.44 and 8,913.60 is: 12,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.06 : 12,946.44 = 8,913.60 : x
  2. Step 2: Convert to fraction form
    9,369.06/12,946.44 = 8,913.60/x
  3. Step 3: Cross multiply
    9,369.06x = 12,946.44 × 8,913.60
  4. Step 4: Simplify right side
    9,369.06x = 115,399,387.58
  5. Step 5: Solve for x
    x = 115,399,387.58/9,369.06
  6. Step 6: Final answer
    x = 12,317.07

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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.