Home / 18,000.55-27,012.87-7,470.58

Finding the Fourth Proportional to 18,000.55, 27,012.87 and 7,470.58

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Solution

The fourth proportional to 18,000.55, 27,012.87 and 7,470.58 is: 11,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.55 : 27,012.87 = 7,470.58 : x
  2. Step 2: Convert to fraction form
    18,000.55/27,012.87 = 7,470.58/x
  3. Step 3: Cross multiply
    18,000.55x = 27,012.87 × 7,470.58
  4. Step 4: Simplify right side
    18,000.55x = 201,801,806.36
  5. Step 5: Solve for x
    x = 201,801,806.36/18,000.55
  6. Step 6: Final answer
    x = 11,210.87

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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.