Home / 8,520.57-12,777.19-2,972.26

Finding the Fourth Proportional to 8,520.57, 12,777.19 and 2,972.26

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Solution

The fourth proportional to 8,520.57, 12,777.19 and 2,972.26 is: 4,457.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.57 : 12,777.19 = 2,972.26 : x
  2. Step 2: Convert to fraction form
    8,520.57/12,777.19 = 2,972.26/x
  3. Step 3: Cross multiply
    8,520.57x = 12,777.19 × 2,972.26
  4. Step 4: Simplify right side
    8,520.57x = 37,977,130.75
  5. Step 5: Solve for x
    x = 37,977,130.75/8,520.57
  6. Step 6: Final answer
    x = 4,457.11

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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.