Home / 13,983.30-19,293.66-8,319.92

Finding the Fourth Proportional to 13,983.30, 19,293.66 and 8,319.92

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Solution

The fourth proportional to 13,983.30, 19,293.66 and 8,319.92 is: 11,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.30 : 19,293.66 = 8,319.92 : x
  2. Step 2: Convert to fraction form
    13,983.30/19,293.66 = 8,319.92/x
  3. Step 3: Cross multiply
    13,983.30x = 19,293.66 × 8,319.92
  4. Step 4: Simplify right side
    13,983.30x = 160,521,611.24
  5. Step 5: Solve for x
    x = 160,521,611.24/13,983.30
  6. Step 6: Final answer
    x = 11,479.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.