Home / 13,282.92-18,330.48-7,977.82

Finding the Fourth Proportional to 13,282.92, 18,330.48 and 7,977.82

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Solution

The fourth proportional to 13,282.92, 18,330.48 and 7,977.82 is: 11,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.92 : 18,330.48 = 7,977.82 : x
  2. Step 2: Convert to fraction form
    13,282.92/18,330.48 = 7,977.82/x
  3. Step 3: Cross multiply
    13,282.92x = 18,330.48 × 7,977.82
  4. Step 4: Simplify right side
    13,282.92x = 146,237,269.95
  5. Step 5: Solve for x
    x = 146,237,269.95/13,282.92
  6. Step 6: Final answer
    x = 11,009.42

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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.