Home / 12,904.21-19,357.22-5,113

Finding the Fourth Proportional to 12,904.21, 19,357.22 and 5,113

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Solution

The fourth proportional to 12,904.21, 19,357.22 and 5,113 is: 7,669.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.21 : 19,357.22 = 5,113 : x
  2. Step 2: Convert to fraction form
    12,904.21/19,357.22 = 5,113/x
  3. Step 3: Cross multiply
    12,904.21x = 19,357.22 × 5,113
  4. Step 4: Simplify right side
    12,904.21x = 98,973,440.30
  5. Step 5: Solve for x
    x = 98,973,440.30/12,904.21
  6. Step 6: Final answer
    x = 7,669.86

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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.