Home / 12,015.07-18,006.23-7,624.67

Finding the Fourth Proportional to 12,015.07, 18,006.23 and 7,624.67

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Solution

The fourth proportional to 12,015.07, 18,006.23 and 7,624.67 is: 11,426.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.07 : 18,006.23 = 7,624.67 : x
  2. Step 2: Convert to fraction form
    12,015.07/18,006.23 = 7,624.67/x
  3. Step 3: Cross multiply
    12,015.07x = 18,006.23 × 7,624.67
  4. Step 4: Simplify right side
    12,015.07x = 137,291,490.72
  5. Step 5: Solve for x
    x = 137,291,490.72/12,015.07
  6. Step 6: Final answer
    x = 11,426.61

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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.