Home / 12,429.28-18,638.43-6,584.50

Finding the Fourth Proportional to 12,429.28, 18,638.43 and 6,584.50

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Solution

The fourth proportional to 12,429.28, 18,638.43 and 6,584.50 is: 9,873.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.28 : 18,638.43 = 6,584.50 : x
  2. Step 2: Convert to fraction form
    12,429.28/18,638.43 = 6,584.50/x
  3. Step 3: Cross multiply
    12,429.28x = 18,638.43 × 6,584.50
  4. Step 4: Simplify right side
    12,429.28x = 122,724,742.34
  5. Step 5: Solve for x
    x = 122,724,742.34/12,429.28
  6. Step 6: Final answer
    x = 9,873.84

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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.