Home / 7,762.80-11,637.66-6,442.83

Finding the Fourth Proportional to 7,762.80, 11,637.66 and 6,442.83

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Solution

The fourth proportional to 7,762.80, 11,637.66 and 6,442.83 is: 9,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762.80 : 11,637.66 = 6,442.83 : x
  2. Step 2: Convert to fraction form
    7,762.80/11,637.66 = 6,442.83/x
  3. Step 3: Cross multiply
    7,762.80x = 11,637.66 × 6,442.83
  4. Step 4: Simplify right side
    7,762.80x = 74,979,464.98
  5. Step 5: Solve for x
    x = 74,979,464.98/7,762.80
  6. Step 6: Final answer
    x = 9,658.82

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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.