Home / 11,749.55-17,631.21-4,728.47

Finding the Fourth Proportional to 11,749.55, 17,631.21 and 4,728.47

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Solution

The fourth proportional to 11,749.55, 17,631.21 and 4,728.47 is: 7,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.55 : 17,631.21 = 4,728.47 : x
  2. Step 2: Convert to fraction form
    11,749.55/17,631.21 = 4,728.47/x
  3. Step 3: Cross multiply
    11,749.55x = 17,631.21 × 4,728.47
  4. Step 4: Simplify right side
    11,749.55x = 83,368,623.91
  5. Step 5: Solve for x
    x = 83,368,623.91/11,749.55
  6. Step 6: Final answer
    x = 7,095.47

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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.