Home / 12,004.74-18,006.57-8,499.75

Finding the Fourth Proportional to 12,004.74, 18,006.57 and 8,499.75

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Solution

The fourth proportional to 12,004.74, 18,006.57 and 8,499.75 is: 12,749.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,004.74 : 18,006.57 = 8,499.75 : x
  2. Step 2: Convert to fraction form
    12,004.74/18,006.57 = 8,499.75/x
  3. Step 3: Cross multiply
    12,004.74x = 18,006.57 × 8,499.75
  4. Step 4: Simplify right side
    12,004.74x = 153,051,343.36
  5. Step 5: Solve for x
    x = 153,051,343.36/12,004.74
  6. Step 6: Final answer
    x = 12,749.24

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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.