Home / 18,322.90-27,478.85-7,792.84

Finding the Fourth Proportional to 18,322.90, 27,478.85 and 7,792.84

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Solution

The fourth proportional to 18,322.90, 27,478.85 and 7,792.84 is: 11,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.90 : 27,478.85 = 7,792.84 : x
  2. Step 2: Convert to fraction form
    18,322.90/27,478.85 = 7,792.84/x
  3. Step 3: Cross multiply
    18,322.90x = 27,478.85 × 7,792.84
  4. Step 4: Simplify right side
    18,322.90x = 214,138,105.08
  5. Step 5: Solve for x
    x = 214,138,105.08/18,322.90
  6. Step 6: Final answer
    x = 11,686.91

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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.