Home / 14,004.72-21,000.60-5,239.44

Finding the Fourth Proportional to 14,004.72, 21,000.60 and 5,239.44

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Solution

The fourth proportional to 14,004.72, 21,000.60 and 5,239.44 is: 7,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.72 : 21,000.60 = 5,239.44 : x
  2. Step 2: Convert to fraction form
    14,004.72/21,000.60 = 5,239.44/x
  3. Step 3: Cross multiply
    14,004.72x = 21,000.60 × 5,239.44
  4. Step 4: Simplify right side
    14,004.72x = 110,031,383.66
  5. Step 5: Solve for x
    x = 110,031,383.66/14,004.72
  6. Step 6: Final answer
    x = 7,856.74

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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.