Home / 14,390.74-19,859.61-8,103.34

Finding the Fourth Proportional to 14,390.74, 19,859.61 and 8,103.34

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Solution

The fourth proportional to 14,390.74, 19,859.61 and 8,103.34 is: 11,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.74 : 19,859.61 = 8,103.34 : x
  2. Step 2: Convert to fraction form
    14,390.74/19,859.61 = 8,103.34/x
  3. Step 3: Cross multiply
    14,390.74x = 19,859.61 × 8,103.34
  4. Step 4: Simplify right side
    14,390.74x = 160,929,172.10
  5. Step 5: Solve for x
    x = 160,929,172.10/14,390.74
  6. Step 6: Final answer
    x = 11,182.83

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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.