Home / 13,459.28-20,189.74-4,099.98

Finding the Fourth Proportional to 13,459.28, 20,189.74 and 4,099.98

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Solution

The fourth proportional to 13,459.28, 20,189.74 and 4,099.98 is: 6,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.28 : 20,189.74 = 4,099.98 : x
  2. Step 2: Convert to fraction form
    13,459.28/20,189.74 = 4,099.98/x
  3. Step 3: Cross multiply
    13,459.28x = 20,189.74 × 4,099.98
  4. Step 4: Simplify right side
    13,459.28x = 82,777,603.35
  5. Step 5: Solve for x
    x = 82,777,603.35/13,459.28
  6. Step 6: Final answer
    x = 6,150.22

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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.