Home / 8,917.92-12,295.55-5,725.58

Finding the Fourth Proportional to 8,917.92, 12,295.55 and 5,725.58

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Solution

The fourth proportional to 8,917.92, 12,295.55 and 5,725.58 is: 7,894.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.92 : 12,295.55 = 5,725.58 : x
  2. Step 2: Convert to fraction form
    8,917.92/12,295.55 = 5,725.58/x
  3. Step 3: Cross multiply
    8,917.92x = 12,295.55 × 5,725.58
  4. Step 4: Simplify right side
    8,917.92x = 70,399,065.06
  5. Step 5: Solve for x
    x = 70,399,065.06/8,917.92
  6. Step 6: Final answer
    x = 7,894.11

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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.