Home / 18,478.90-27,722.46-5,330.26

Finding the Fourth Proportional to 18,478.90, 27,722.46 and 5,330.26

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Solution

The fourth proportional to 18,478.90, 27,722.46 and 5,330.26 is: 7,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.90 : 27,722.46 = 5,330.26 : x
  2. Step 2: Convert to fraction form
    18,478.90/27,722.46 = 5,330.26/x
  3. Step 3: Cross multiply
    18,478.90x = 27,722.46 × 5,330.26
  4. Step 4: Simplify right side
    18,478.90x = 147,767,919.64
  5. Step 5: Solve for x
    x = 147,767,919.64/18,478.90
  6. Step 6: Final answer
    x = 7,996.58

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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.