Home / 13,398.72-20,091.06-4,631.55

Finding the Fourth Proportional to 13,398.72, 20,091.06 and 4,631.55

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Solution

The fourth proportional to 13,398.72, 20,091.06 and 4,631.55 is: 6,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.72 : 20,091.06 = 4,631.55 : x
  2. Step 2: Convert to fraction form
    13,398.72/20,091.06 = 4,631.55/x
  3. Step 3: Cross multiply
    13,398.72x = 20,091.06 × 4,631.55
  4. Step 4: Simplify right side
    13,398.72x = 93,052,748.94
  5. Step 5: Solve for x
    x = 93,052,748.94/13,398.72
  6. Step 6: Final answer
    x = 6,944.90

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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.