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Finding the Fourth Proportional to 6,543.72, 9,749.40 and 6,213.24

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Solution

The fourth proportional to 6,543.72, 9,749.40 and 6,213.24 is: 9,257.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.72 : 9,749.40 = 6,213.24 : x
  2. Step 2: Convert to fraction form
    6,543.72/9,749.40 = 6,213.24/x
  3. Step 3: Cross multiply
    6,543.72x = 9,749.40 × 6,213.24
  4. Step 4: Simplify right side
    6,543.72x = 60,575,362.06
  5. Step 5: Solve for x
    x = 60,575,362.06/6,543.72
  6. Step 6: Final answer
    x = 9,257.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.