Home / 14,004.10-21,005.55-5,239.06

Finding the Fourth Proportional to 14,004.10, 21,005.55 and 5,239.06

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Solution

The fourth proportional to 14,004.10, 21,005.55 and 5,239.06 is: 7,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.10 : 21,005.55 = 5,239.06 : x
  2. Step 2: Convert to fraction form
    14,004.10/21,005.55 = 5,239.06/x
  3. Step 3: Cross multiply
    14,004.10x = 21,005.55 × 5,239.06
  4. Step 4: Simplify right side
    14,004.10x = 110,049,336.78
  5. Step 5: Solve for x
    x = 110,049,336.78/14,004.10
  6. Step 6: Final answer
    x = 7,858.37

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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.