Home / 7,820.75-11,725.94-4,312.46

Finding the Fourth Proportional to 7,820.75, 11,725.94 and 4,312.46

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Solution

The fourth proportional to 7,820.75, 11,725.94 and 4,312.46 is: 6,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.75 : 11,725.94 = 4,312.46 : x
  2. Step 2: Convert to fraction form
    7,820.75/11,725.94 = 4,312.46/x
  3. Step 3: Cross multiply
    7,820.75x = 11,725.94 × 4,312.46
  4. Step 4: Simplify right side
    7,820.75x = 50,567,567.02
  5. Step 5: Solve for x
    x = 50,567,567.02/7,820.75
  6. Step 6: Final answer
    x = 6,465.82

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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.