Home / 6,986.10-9,640.57-4,001.53

Finding the Fourth Proportional to 6,986.10, 9,640.57 and 4,001.53

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Solution

The fourth proportional to 6,986.10, 9,640.57 and 4,001.53 is: 5,521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.10 : 9,640.57 = 4,001.53 : x
  2. Step 2: Convert to fraction form
    6,986.10/9,640.57 = 4,001.53/x
  3. Step 3: Cross multiply
    6,986.10x = 9,640.57 × 4,001.53
  4. Step 4: Simplify right side
    6,986.10x = 38,576,994.43
  5. Step 5: Solve for x
    x = 38,576,994.43/6,986.10
  6. Step 6: Final answer
    x = 5,521.97

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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.