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Finding the Fourth Proportional to 6,632.82, 9,939.95 and 4,987.44

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Solution

The fourth proportional to 6,632.82, 9,939.95 and 4,987.44 is: 7,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.82 : 9,939.95 = 4,987.44 : x
  2. Step 2: Convert to fraction form
    6,632.82/9,939.95 = 4,987.44/x
  3. Step 3: Cross multiply
    6,632.82x = 9,939.95 × 4,987.44
  4. Step 4: Simplify right side
    6,632.82x = 49,574,897.99
  5. Step 5: Solve for x
    x = 49,574,897.99/6,632.82
  6. Step 6: Final answer
    x = 7,474.18

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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.