Home / 14,390.84-19,861.74-8,103.80

Finding the Fourth Proportional to 14,390.84, 19,861.74 and 8,103.80

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Solution

The fourth proportional to 14,390.84, 19,861.74 and 8,103.80 is: 11,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.84 : 19,861.74 = 8,103.80 : x
  2. Step 2: Convert to fraction form
    14,390.84/19,861.74 = 8,103.80/x
  3. Step 3: Cross multiply
    14,390.84x = 19,861.74 × 8,103.80
  4. Step 4: Simplify right side
    14,390.84x = 160,955,568.61
  5. Step 5: Solve for x
    x = 160,955,568.61/14,390.84
  6. Step 6: Final answer
    x = 11,184.58

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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.