Home / 12,520.07-18,783.30-8,829.50

Finding the Fourth Proportional to 12,520.07, 18,783.30 and 8,829.50

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Solution

The fourth proportional to 12,520.07, 18,783.30 and 8,829.50 is: 13,246.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.07 : 18,783.30 = 8,829.50 : x
  2. Step 2: Convert to fraction form
    12,520.07/18,783.30 = 8,829.50/x
  3. Step 3: Cross multiply
    12,520.07x = 18,783.30 × 8,829.50
  4. Step 4: Simplify right side
    12,520.07x = 165,847,147.35
  5. Step 5: Solve for x
    x = 165,847,147.35/12,520.07
  6. Step 6: Final answer
    x = 13,246.51

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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.