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Finding the Fourth Proportional to 6,368.70, 9,554.01 and 1,986.50

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Solution

The fourth proportional to 6,368.70, 9,554.01 and 1,986.50 is: 2,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.70 : 9,554.01 = 1,986.50 : x
  2. Step 2: Convert to fraction form
    6,368.70/9,554.01 = 1,986.50/x
  3. Step 3: Cross multiply
    6,368.70x = 9,554.01 × 1,986.50
  4. Step 4: Simplify right side
    6,368.70x = 18,979,040.87
  5. Step 5: Solve for x
    x = 18,979,040.87/6,368.70
  6. Step 6: Final answer
    x = 2,980.05

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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.