Home / 8,725.44-12,038.40-4,998.72

Finding the Fourth Proportional to 8,725.44, 12,038.40 and 4,998.72

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Solution

The fourth proportional to 8,725.44, 12,038.40 and 4,998.72 is: 6,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.44 : 12,038.40 = 4,998.72 : x
  2. Step 2: Convert to fraction form
    8,725.44/12,038.40 = 4,998.72/x
  3. Step 3: Cross multiply
    8,725.44x = 12,038.40 × 4,998.72
  4. Step 4: Simplify right side
    8,725.44x = 60,176,590.85
  5. Step 5: Solve for x
    x = 60,176,590.85/8,725.44
  6. Step 6: Final answer
    x = 6,896.68

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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.