Home / 18,330.63-27,480.55-12,767.55

Finding the Fourth Proportional to 18,330.63, 27,480.55 and 12,767.55

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Solution

The fourth proportional to 18,330.63, 27,480.55 and 12,767.55 is: 19,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.63 : 27,480.55 = 12,767.55 : x
  2. Step 2: Convert to fraction form
    18,330.63/27,480.55 = 12,767.55/x
  3. Step 3: Cross multiply
    18,330.63x = 27,480.55 × 12,767.55
  4. Step 4: Simplify right side
    18,330.63x = 350,859,296.15
  5. Step 5: Solve for x
    x = 350,859,296.15/18,330.63
  6. Step 6: Final answer
    x = 19,140.60

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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.