Home / 14,112.72-21,167.28-4,751.28

Finding the Fourth Proportional to 14,112.72, 21,167.28 and 4,751.28

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Solution

The fourth proportional to 14,112.72, 21,167.28 and 4,751.28 is: 7,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.72 : 21,167.28 = 4,751.28 : x
  2. Step 2: Convert to fraction form
    14,112.72/21,167.28 = 4,751.28/x
  3. Step 3: Cross multiply
    14,112.72x = 21,167.28 × 4,751.28
  4. Step 4: Simplify right side
    14,112.72x = 100,571,674.12
  5. Step 5: Solve for x
    x = 100,571,674.12/14,112.72
  6. Step 6: Final answer
    x = 7,126.31

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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.