Home / 13,158.86-19,742.13-4,399.92

Finding the Fourth Proportional to 13,158.86, 19,742.13 and 4,399.92

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Solution

The fourth proportional to 13,158.86, 19,742.13 and 4,399.92 is: 6,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.86 : 19,742.13 = 4,399.92 : x
  2. Step 2: Convert to fraction form
    13,158.86/19,742.13 = 4,399.92/x
  3. Step 3: Cross multiply
    13,158.86x = 19,742.13 × 4,399.92
  4. Step 4: Simplify right side
    13,158.86x = 86,863,792.63
  5. Step 5: Solve for x
    x = 86,863,792.63/13,158.86
  6. Step 6: Final answer
    x = 6,601.17

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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.