Home / 13,558.28-20,338.14-4,204.76

Finding the Fourth Proportional to 13,558.28, 20,338.14 and 4,204.76

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Solution

The fourth proportional to 13,558.28, 20,338.14 and 4,204.76 is: 6,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.28 : 20,338.14 = 4,204.76 : x
  2. Step 2: Convert to fraction form
    13,558.28/20,338.14 = 4,204.76/x
  3. Step 3: Cross multiply
    13,558.28x = 20,338.14 × 4,204.76
  4. Step 4: Simplify right side
    13,558.28x = 85,516,997.55
  5. Step 5: Solve for x
    x = 85,516,997.55/13,558.28
  6. Step 6: Final answer
    x = 6,307.36

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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.