Home / 13,433.61-20,150.42-5,111.67

Finding the Fourth Proportional to 13,433.61, 20,150.42 and 5,111.67

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Solution

The fourth proportional to 13,433.61, 20,150.42 and 5,111.67 is: 7,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.61 : 20,150.42 = 5,111.67 : x
  2. Step 2: Convert to fraction form
    13,433.61/20,150.42 = 5,111.67/x
  3. Step 3: Cross multiply
    13,433.61x = 20,150.42 × 5,111.67
  4. Step 4: Simplify right side
    13,433.61x = 103,002,271.84
  5. Step 5: Solve for x
    x = 103,002,271.84/13,433.61
  6. Step 6: Final answer
    x = 7,667.51

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Double scale
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Similar ratio
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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.