Home / 12,965.16-19,430.82-5,942.64

Finding the Fourth Proportional to 12,965.16, 19,430.82 and 5,942.64

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Solution

The fourth proportional to 12,965.16, 19,430.82 and 5,942.64 is: 8,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.16 : 19,430.82 = 5,942.64 : x
  2. Step 2: Convert to fraction form
    12,965.16/19,430.82 = 5,942.64/x
  3. Step 3: Cross multiply
    12,965.16x = 19,430.82 × 5,942.64
  4. Step 4: Simplify right side
    12,965.16x = 115,470,368.16
  5. Step 5: Solve for x
    x = 115,470,368.16/12,965.16
  6. Step 6: Final answer
    x = 8,906.20

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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.