Home / 12,157.38-18,228.77-4,753.02

Finding the Fourth Proportional to 12,157.38, 18,228.77 and 4,753.02

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Solution

The fourth proportional to 12,157.38, 18,228.77 and 4,753.02 is: 7,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.38 : 18,228.77 = 4,753.02 : x
  2. Step 2: Convert to fraction form
    12,157.38/18,228.77 = 4,753.02/x
  3. Step 3: Cross multiply
    12,157.38x = 18,228.77 × 4,753.02
  4. Step 4: Simplify right side
    12,157.38x = 86,641,634.09
  5. Step 5: Solve for x
    x = 86,641,634.09/12,157.38
  6. Step 6: Final answer
    x = 7,126.67

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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.