Home / 8,725.70-12,037.59-5,815.92

Finding the Fourth Proportional to 8,725.70, 12,037.59 and 5,815.92

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Solution

The fourth proportional to 8,725.70, 12,037.59 and 5,815.92 is: 8,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.70 : 12,037.59 = 5,815.92 : x
  2. Step 2: Convert to fraction form
    8,725.70/12,037.59 = 5,815.92/x
  3. Step 3: Cross multiply
    8,725.70x = 12,037.59 × 5,815.92
  4. Step 4: Simplify right side
    8,725.70x = 70,009,660.43
  5. Step 5: Solve for x
    x = 70,009,660.43/8,725.70
  6. Step 6: Final answer
    x = 8,023.39

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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.