Home / 14,390.60-19,858.65-8,102.84

Finding the Fourth Proportional to 14,390.60, 19,858.65 and 8,102.84

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Solution

The fourth proportional to 14,390.60, 19,858.65 and 8,102.84 is: 11,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.60 : 19,858.65 = 8,102.84 : x
  2. Step 2: Convert to fraction form
    14,390.60/19,858.65 = 8,102.84/x
  3. Step 3: Cross multiply
    14,390.60x = 19,858.65 × 8,102.84
  4. Step 4: Simplify right side
    14,390.60x = 160,911,463.57
  5. Step 5: Solve for x
    x = 160,911,463.57/14,390.60
  6. Step 6: Final answer
    x = 11,181.71

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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.