Home / 14,182.96-21,271.69-5,415.79

Finding the Fourth Proportional to 14,182.96, 21,271.69 and 5,415.79

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Solution

The fourth proportional to 14,182.96, 21,271.69 and 5,415.79 is: 8,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,182.96 : 21,271.69 = 5,415.79 : x
  2. Step 2: Convert to fraction form
    14,182.96/21,271.69 = 5,415.79/x
  3. Step 3: Cross multiply
    14,182.96x = 21,271.69 × 5,415.79
  4. Step 4: Simplify right side
    14,182.96x = 115,202,872.55
  5. Step 5: Solve for x
    x = 115,202,872.55/14,182.96
  6. Step 6: Final answer
    x = 8,122.63

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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.