Home / 13,188.63-19,788.12-5,787.93

Finding the Fourth Proportional to 13,188.63, 19,788.12 and 5,787.93

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Solution

The fourth proportional to 13,188.63, 19,788.12 and 5,787.93 is: 8,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.63 : 19,788.12 = 5,787.93 : x
  2. Step 2: Convert to fraction form
    13,188.63/19,788.12 = 5,787.93/x
  3. Step 3: Cross multiply
    13,188.63x = 19,788.12 × 5,787.93
  4. Step 4: Simplify right side
    13,188.63x = 114,532,253.39
  5. Step 5: Solve for x
    x = 114,532,253.39/13,188.63
  6. Step 6: Final answer
    x = 8,684.17

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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.