Home / 12,894.32-19,338.33-5,393.81

Finding the Fourth Proportional to 12,894.32, 19,338.33 and 5,393.81

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Solution

The fourth proportional to 12,894.32, 19,338.33 and 5,393.81 is: 8,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.32 : 19,338.33 = 5,393.81 : x
  2. Step 2: Convert to fraction form
    12,894.32/19,338.33 = 5,393.81/x
  3. Step 3: Cross multiply
    12,894.32x = 19,338.33 × 5,393.81
  4. Step 4: Simplify right side
    12,894.32x = 104,307,326.08
  5. Step 5: Solve for x
    x = 104,307,326.08/12,894.32
  6. Step 6: Final answer
    x = 8,089.40

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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.