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Finding the Fourth Proportional to 9,271.76, 12,806.28 and 6,749.88

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Solution

The fourth proportional to 9,271.76, 12,806.28 and 6,749.88 is: 9,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.76 : 12,806.28 = 6,749.88 : x
  2. Step 2: Convert to fraction form
    9,271.76/12,806.28 = 6,749.88/x
  3. Step 3: Cross multiply
    9,271.76x = 12,806.28 × 6,749.88
  4. Step 4: Simplify right side
    9,271.76x = 86,440,853.25
  5. Step 5: Solve for x
    x = 86,440,853.25/9,271.76
  6. Step 6: Final answer
    x = 9,323.03

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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.