Home / 13,015.15-19,522.55-3,154.51

Finding the Fourth Proportional to 13,015.15, 19,522.55 and 3,154.51

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Solution

The fourth proportional to 13,015.15, 19,522.55 and 3,154.51 is: 4,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.15 : 19,522.55 = 3,154.51 : x
  2. Step 2: Convert to fraction form
    13,015.15/19,522.55 = 3,154.51/x
  3. Step 3: Cross multiply
    13,015.15x = 19,522.55 × 3,154.51
  4. Step 4: Simplify right side
    13,015.15x = 61,584,166.40
  5. Step 5: Solve for x
    x = 61,584,166.40/13,015.15
  6. Step 6: Final answer
    x = 4,731.73

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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.