Home / 12,743.64-19,114.11-7,804.67

Finding the Fourth Proportional to 12,743.64, 19,114.11 and 7,804.67

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Solution

The fourth proportional to 12,743.64, 19,114.11 and 7,804.67 is: 11,706.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.64 : 19,114.11 = 7,804.67 : x
  2. Step 2: Convert to fraction form
    12,743.64/19,114.11 = 7,804.67/x
  3. Step 3: Cross multiply
    12,743.64x = 19,114.11 × 7,804.67
  4. Step 4: Simplify right side
    12,743.64x = 149,179,225.32
  5. Step 5: Solve for x
    x = 149,179,225.32/12,743.64
  6. Step 6: Final answer
    x = 11,706.17

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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.