Home / 15,698.11-21,664.92-8,984.70

Finding the Fourth Proportional to 15,698.11, 21,664.92 and 8,984.70

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Solution

The fourth proportional to 15,698.11, 21,664.92 and 8,984.70 is: 12,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.11 : 21,664.92 = 8,984.70 : x
  2. Step 2: Convert to fraction form
    15,698.11/21,664.92 = 8,984.70/x
  3. Step 3: Cross multiply
    15,698.11x = 21,664.92 × 8,984.70
  4. Step 4: Simplify right side
    15,698.11x = 194,652,806.72
  5. Step 5: Solve for x
    x = 194,652,806.72/15,698.11
  6. Step 6: Final answer
    x = 12,399.76

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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.