Home / 12,633.84-18,962.46-6,398.28

Finding the Fourth Proportional to 12,633.84, 18,962.46 and 6,398.28

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Solution

The fourth proportional to 12,633.84, 18,962.46 and 6,398.28 is: 9,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.84 : 18,962.46 = 6,398.28 : x
  2. Step 2: Convert to fraction form
    12,633.84/18,962.46 = 6,398.28/x
  3. Step 3: Cross multiply
    12,633.84x = 18,962.46 × 6,398.28
  4. Step 4: Simplify right side
    12,633.84x = 121,327,128.57
  5. Step 5: Solve for x
    x = 121,327,128.57/12,633.84
  6. Step 6: Final answer
    x = 9,603.35

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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.