Home / 8,725.79-13,091.42-2,886.50

Finding the Fourth Proportional to 8,725.79, 13,091.42 and 2,886.50

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Solution

The fourth proportional to 8,725.79, 13,091.42 and 2,886.50 is: 4,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.79 : 13,091.42 = 2,886.50 : x
  2. Step 2: Convert to fraction form
    8,725.79/13,091.42 = 2,886.50/x
  3. Step 3: Cross multiply
    8,725.79x = 13,091.42 × 2,886.50
  4. Step 4: Simplify right side
    8,725.79x = 37,788,303.94
  5. Step 5: Solve for x
    x = 37,788,303.94/8,725.79
  6. Step 6: Final answer
    x = 4,330.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.