Home / 12,652.22-18,977.42-7,140.08

Finding the Fourth Proportional to 12,652.22, 18,977.42 and 7,140.08

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Solution

The fourth proportional to 12,652.22, 18,977.42 and 7,140.08 is: 10,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.22 : 18,977.42 = 7,140.08 : x
  2. Step 2: Convert to fraction form
    12,652.22/18,977.42 = 7,140.08/x
  3. Step 3: Cross multiply
    12,652.22x = 18,977.42 × 7,140.08
  4. Step 4: Simplify right side
    12,652.22x = 135,500,362.29
  5. Step 5: Solve for x
    x = 135,500,362.29/12,652.22
  6. Step 6: Final answer
    x = 10,709.61

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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.