Home / 18,320.12-27,477.95-7,794.37

Finding the Fourth Proportional to 18,320.12, 27,477.95 and 7,794.37

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Solution

The fourth proportional to 18,320.12, 27,477.95 and 7,794.37 is: 11,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.12 : 27,477.95 = 7,794.37 : x
  2. Step 2: Convert to fraction form
    18,320.12/27,477.95 = 7,794.37/x
  3. Step 3: Cross multiply
    18,320.12x = 27,477.95 × 7,794.37
  4. Step 4: Simplify right side
    18,320.12x = 214,173,201.47
  5. Step 5: Solve for x
    x = 214,173,201.47/18,320.12
  6. Step 6: Final answer
    x = 11,690.60

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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.