Home / 8,889.72-12,267.93-5,112.96

Finding the Fourth Proportional to 8,889.72, 12,267.93 and 5,112.96

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Solution

The fourth proportional to 8,889.72, 12,267.93 and 5,112.96 is: 7,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.72 : 12,267.93 = 5,112.96 : x
  2. Step 2: Convert to fraction form
    8,889.72/12,267.93 = 5,112.96/x
  3. Step 3: Cross multiply
    8,889.72x = 12,267.93 × 5,112.96
  4. Step 4: Simplify right side
    8,889.72x = 62,725,435.37
  5. Step 5: Solve for x
    x = 62,725,435.37/8,889.72
  6. Step 6: Final answer
    x = 7,055.95

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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.