Home / 14,427.22-19,909.92-8,140

Finding the Fourth Proportional to 14,427.22, 19,909.92 and 8,140

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Solution

The fourth proportional to 14,427.22, 19,909.92 and 8,140 is: 11,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,427.22 : 19,909.92 = 8,140 : x
  2. Step 2: Convert to fraction form
    14,427.22/19,909.92 = 8,140/x
  3. Step 3: Cross multiply
    14,427.22x = 19,909.92 × 8,140
  4. Step 4: Simplify right side
    14,427.22x = 162,066,748.80
  5. Step 5: Solve for x
    x = 162,066,748.80/14,427.22
  6. Step 6: Final answer
    x = 11,233.40

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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.