Home / 7,939.10-11,927.01-4,986.74

Finding the Fourth Proportional to 7,939.10, 11,927.01 and 4,986.74

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Solution

The fourth proportional to 7,939.10, 11,927.01 and 4,986.74 is: 7,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.10 : 11,927.01 = 4,986.74 : x
  2. Step 2: Convert to fraction form
    7,939.10/11,927.01 = 4,986.74/x
  3. Step 3: Cross multiply
    7,939.10x = 11,927.01 × 4,986.74
  4. Step 4: Simplify right side
    7,939.10x = 59,476,897.85
  5. Step 5: Solve for x
    x = 59,476,897.85/7,939.10
  6. Step 6: Final answer
    x = 7,491.64

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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.