Home / 14,213.79-21,308.55-5,454.99

Finding the Fourth Proportional to 14,213.79, 21,308.55 and 5,454.99

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Solution

The fourth proportional to 14,213.79, 21,308.55 and 5,454.99 is: 8,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.79 : 21,308.55 = 5,454.99 : x
  2. Step 2: Convert to fraction form
    14,213.79/21,308.55 = 5,454.99/x
  3. Step 3: Cross multiply
    14,213.79x = 21,308.55 × 5,454.99
  4. Step 4: Simplify right side
    14,213.79x = 116,237,927.16
  5. Step 5: Solve for x
    x = 116,237,927.16/14,213.79
  6. Step 6: Final answer
    x = 8,177.83

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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.