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Finding the Fourth Proportional to 6,555.77, 9,784.13 and 6,111.37

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Solution

The fourth proportional to 6,555.77, 9,784.13 and 6,111.37 is: 9,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.77 : 9,784.13 = 6,111.37 : x
  2. Step 2: Convert to fraction form
    6,555.77/9,784.13 = 6,111.37/x
  3. Step 3: Cross multiply
    6,555.77x = 9,784.13 × 6,111.37
  4. Step 4: Simplify right side
    6,555.77x = 59,794,365.20
  5. Step 5: Solve for x
    x = 59,794,365.20/6,555.77
  6. Step 6: Final answer
    x = 9,120.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.