Home / 6,670.13-9,999.80-2,777.45

Finding the Fourth Proportional to 6,670.13, 9,999.80 and 2,777.45

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Solution

The fourth proportional to 6,670.13, 9,999.80 and 2,777.45 is: 4,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,670.13 : 9,999.80 = 2,777.45 : x
  2. Step 2: Convert to fraction form
    6,670.13/9,999.80 = 2,777.45/x
  3. Step 3: Cross multiply
    6,670.13x = 9,999.80 × 2,777.45
  4. Step 4: Simplify right side
    6,670.13x = 27,773,930.62
  5. Step 5: Solve for x
    x = 27,773,930.62/6,670.13
  6. Step 6: Final answer
    x = 4,163.93

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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.