Home / 8,520.90-12,783.15-2,597.30

Finding the Fourth Proportional to 8,520.90, 12,783.15 and 2,597.30

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Solution

The fourth proportional to 8,520.90, 12,783.15 and 2,597.30 is: 3,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.90 : 12,783.15 = 2,597.30 : x
  2. Step 2: Convert to fraction form
    8,520.90/12,783.15 = 2,597.30/x
  3. Step 3: Cross multiply
    8,520.90x = 12,783.15 × 2,597.30
  4. Step 4: Simplify right side
    8,520.90x = 33,201,675.50
  5. Step 5: Solve for x
    x = 33,201,675.50/8,520.90
  6. Step 6: Final answer
    x = 3,896.50

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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.