Home / 14,271.28-19,694.34-8,682.28

Finding the Fourth Proportional to 14,271.28, 19,694.34 and 8,682.28

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Solution

The fourth proportional to 14,271.28, 19,694.34 and 8,682.28 is: 11,981.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,271.28 : 19,694.34 = 8,682.28 : x
  2. Step 2: Convert to fraction form
    14,271.28/19,694.34 = 8,682.28/x
  3. Step 3: Cross multiply
    14,271.28x = 19,694.34 × 8,682.28
  4. Step 4: Simplify right side
    14,271.28x = 170,991,774.30
  5. Step 5: Solve for x
    x = 170,991,774.30/14,271.28
  6. Step 6: Final answer
    x = 11,981.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.