Home / 12,397.56-18,595.47-3,631.74

Finding the Fourth Proportional to 12,397.56, 18,595.47 and 3,631.74

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Solution

The fourth proportional to 12,397.56, 18,595.47 and 3,631.74 is: 5,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.56 : 18,595.47 = 3,631.74 : x
  2. Step 2: Convert to fraction form
    12,397.56/18,595.47 = 3,631.74/x
  3. Step 3: Cross multiply
    12,397.56x = 18,595.47 × 3,631.74
  4. Step 4: Simplify right side
    12,397.56x = 67,533,912.22
  5. Step 5: Solve for x
    x = 67,533,912.22/12,397.56
  6. Step 6: Final answer
    x = 5,447.36

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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.