Home / 7,725.15-10,660.73-4,188.37

Finding the Fourth Proportional to 7,725.15, 10,660.73 and 4,188.37

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Solution

The fourth proportional to 7,725.15, 10,660.73 and 4,188.37 is: 5,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.15 : 10,660.73 = 4,188.37 : x
  2. Step 2: Convert to fraction form
    7,725.15/10,660.73 = 4,188.37/x
  3. Step 3: Cross multiply
    7,725.15x = 10,660.73 × 4,188.37
  4. Step 4: Simplify right side
    7,725.15x = 44,651,081.71
  5. Step 5: Solve for x
    x = 44,651,081.71/7,725.15
  6. Step 6: Final answer
    x = 5,779.96

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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.