Home / 13,247.88-19,880.93-5,456.69

Finding the Fourth Proportional to 13,247.88, 19,880.93 and 5,456.69

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Solution

The fourth proportional to 13,247.88, 19,880.93 and 5,456.69 is: 8,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.88 : 19,880.93 = 5,456.69 : x
  2. Step 2: Convert to fraction form
    13,247.88/19,880.93 = 5,456.69/x
  3. Step 3: Cross multiply
    13,247.88x = 19,880.93 × 5,456.69
  4. Step 4: Simplify right side
    13,247.88x = 108,484,071.92
  5. Step 5: Solve for x
    x = 108,484,071.92/13,247.88
  6. Step 6: Final answer
    x = 8,188.79

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1.5x scale

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.