Home / 14,390.35-19,858.65-8,102.74

Finding the Fourth Proportional to 14,390.35, 19,858.65 and 8,102.74

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Solution

The fourth proportional to 14,390.35, 19,858.65 and 8,102.74 is: 11,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.35 : 19,858.65 = 8,102.74 : x
  2. Step 2: Convert to fraction form
    14,390.35/19,858.65 = 8,102.74/x
  3. Step 3: Cross multiply
    14,390.35x = 19,858.65 × 8,102.74
  4. Step 4: Simplify right side
    14,390.35x = 160,909,477.70
  5. Step 5: Solve for x
    x = 160,909,477.70/14,390.35
  6. Step 6: Final answer
    x = 11,181.76

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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.