Home / 14,211.20-21,318.40-4,350.40

Finding the Fourth Proportional to 14,211.20, 21,318.40 and 4,350.40

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Solution

The fourth proportional to 14,211.20, 21,318.40 and 4,350.40 is: 6,526.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.20 : 21,318.40 = 4,350.40 : x
  2. Step 2: Convert to fraction form
    14,211.20/21,318.40 = 4,350.40/x
  3. Step 3: Cross multiply
    14,211.20x = 21,318.40 × 4,350.40
  4. Step 4: Simplify right side
    14,211.20x = 92,743,567.36
  5. Step 5: Solve for x
    x = 92,743,567.36/14,211.20
  6. Step 6: Final answer
    x = 6,526.09

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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.