Home / 12,707.58-19,066.83-6,138.69

Finding the Fourth Proportional to 12,707.58, 19,066.83 and 6,138.69

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Solution

The fourth proportional to 12,707.58, 19,066.83 and 6,138.69 is: 9,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.58 : 19,066.83 = 6,138.69 : x
  2. Step 2: Convert to fraction form
    12,707.58/19,066.83 = 6,138.69/x
  3. Step 3: Cross multiply
    12,707.58x = 19,066.83 × 6,138.69
  4. Step 4: Simplify right side
    12,707.58x = 117,045,358.65
  5. Step 5: Solve for x
    x = 117,045,358.65/12,707.58
  6. Step 6: Final answer
    x = 9,210.67

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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.