Home / 14,346.96-21,520.56-8,178

Finding the Fourth Proportional to 14,346.96, 21,520.56 and 8,178

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Solution

The fourth proportional to 14,346.96, 21,520.56 and 8,178 is: 12,267.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346.96 : 21,520.56 = 8,178 : x
  2. Step 2: Convert to fraction form
    14,346.96/21,520.56 = 8,178/x
  3. Step 3: Cross multiply
    14,346.96x = 21,520.56 × 8,178
  4. Step 4: Simplify right side
    14,346.96x = 175,995,139.68
  5. Step 5: Solve for x
    x = 175,995,139.68/14,346.96
  6. Step 6: Final answer
    x = 12,267.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.