Home / 7,765.43-11,655.41-4,070.30

Finding the Fourth Proportional to 7,765.43, 11,655.41 and 4,070.30

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Solution

The fourth proportional to 7,765.43, 11,655.41 and 4,070.30 is: 6,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.43 : 11,655.41 = 4,070.30 : x
  2. Step 2: Convert to fraction form
    7,765.43/11,655.41 = 4,070.30/x
  3. Step 3: Cross multiply
    7,765.43x = 11,655.41 × 4,070.30
  4. Step 4: Simplify right side
    7,765.43x = 47,440,936.69
  5. Step 5: Solve for x
    x = 47,440,936.69/7,765.43
  6. Step 6: Final answer
    x = 6,109.25

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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.