Home / 9,638.21-13,304.40-6,281.84

Finding the Fourth Proportional to 9,638.21, 13,304.40 and 6,281.84

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Solution

The fourth proportional to 9,638.21, 13,304.40 and 6,281.84 is: 8,671.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,638.21 : 13,304.40 = 6,281.84 : x
  2. Step 2: Convert to fraction form
    9,638.21/13,304.40 = 6,281.84/x
  3. Step 3: Cross multiply
    9,638.21x = 13,304.40 × 6,281.84
  4. Step 4: Simplify right side
    9,638.21x = 83,576,112.10
  5. Step 5: Solve for x
    x = 83,576,112.10/9,638.21
  6. Step 6: Final answer
    x = 8,671.33

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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.