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Finding the Fourth Proportional to 9,297.79, 12,832.46 and 7,176.40

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Solution

The fourth proportional to 9,297.79, 12,832.46 and 7,176.40 is: 9,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,297.79 : 12,832.46 = 7,176.40 : x
  2. Step 2: Convert to fraction form
    9,297.79/12,832.46 = 7,176.40/x
  3. Step 3: Cross multiply
    9,297.79x = 12,832.46 × 7,176.40
  4. Step 4: Simplify right side
    9,297.79x = 92,090,865.94
  5. Step 5: Solve for x
    x = 92,090,865.94/9,297.79
  6. Step 6: Final answer
    x = 9,904.60

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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.