Home / 14,089.60-21,126.30-4,227.40

Finding the Fourth Proportional to 14,089.60, 21,126.30 and 4,227.40

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Solution

The fourth proportional to 14,089.60, 21,126.30 and 4,227.40 is: 6,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.60 : 21,126.30 = 4,227.40 : x
  2. Step 2: Convert to fraction form
    14,089.60/21,126.30 = 4,227.40/x
  3. Step 3: Cross multiply
    14,089.60x = 21,126.30 × 4,227.40
  4. Step 4: Simplify right side
    14,089.60x = 89,309,320.62
  5. Step 5: Solve for x
    x = 89,309,320.62/14,089.60
  6. Step 6: Final answer
    x = 6,338.67

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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.