Home / 15,411.92-21,268.44-8,698.96

Finding the Fourth Proportional to 15,411.92, 21,268.44 and 8,698.96

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Solution

The fourth proportional to 15,411.92, 21,268.44 and 8,698.96 is: 12,004.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.92 : 21,268.44 = 8,698.96 : x
  2. Step 2: Convert to fraction form
    15,411.92/21,268.44 = 8,698.96/x
  3. Step 3: Cross multiply
    15,411.92x = 21,268.44 × 8,698.96
  4. Step 4: Simplify right side
    15,411.92x = 185,013,308.82
  5. Step 5: Solve for x
    x = 185,013,308.82/15,411.92
  6. Step 6: Final answer
    x = 12,004.56

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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.