Home / 14,000.05-21,000.08-4,138.45

Finding the Fourth Proportional to 14,000.05, 21,000.08 and 4,138.45

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Solution

The fourth proportional to 14,000.05, 21,000.08 and 4,138.45 is: 6,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.05 : 21,000.08 = 4,138.45 : x
  2. Step 2: Convert to fraction form
    14,000.05/21,000.08 = 4,138.45/x
  3. Step 3: Cross multiply
    14,000.05x = 21,000.08 × 4,138.45
  4. Step 4: Simplify right side
    14,000.05x = 86,907,760.38
  5. Step 5: Solve for x
    x = 86,907,760.38/14,000.05
  6. Step 6: Final answer
    x = 6,207.68

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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.