Home / 14,390.96-19,859.24-8,103.20

Finding the Fourth Proportional to 14,390.96, 19,859.24 and 8,103.20

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Solution

The fourth proportional to 14,390.96, 19,859.24 and 8,103.20 is: 11,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.96 : 19,859.24 = 8,103.20 : x
  2. Step 2: Convert to fraction form
    14,390.96/19,859.24 = 8,103.20/x
  3. Step 3: Cross multiply
    14,390.96x = 19,859.24 × 8,103.20
  4. Step 4: Simplify right side
    14,390.96x = 160,923,393.57
  5. Step 5: Solve for x
    x = 160,923,393.57/14,390.96
  6. Step 6: Final answer
    x = 11,182.26

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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.