Home / 9,778.73-13,497.08-6,426.09

Finding the Fourth Proportional to 9,778.73, 13,497.08 and 6,426.09

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Solution

The fourth proportional to 9,778.73, 13,497.08 and 6,426.09 is: 8,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778.73 : 13,497.08 = 6,426.09 : x
  2. Step 2: Convert to fraction form
    9,778.73/13,497.08 = 6,426.09/x
  3. Step 3: Cross multiply
    9,778.73x = 13,497.08 × 6,426.09
  4. Step 4: Simplify right side
    9,778.73x = 86,733,450.82
  5. Step 5: Solve for x
    x = 86,733,450.82/9,778.73
  6. Step 6: Final answer
    x = 8,869.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.