Home / 13,156.48-19,730.99-3,666.62

Finding the Fourth Proportional to 13,156.48, 19,730.99 and 3,666.62

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Solution

The fourth proportional to 13,156.48, 19,730.99 and 3,666.62 is: 5,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.48 : 19,730.99 = 3,666.62 : x
  2. Step 2: Convert to fraction form
    13,156.48/19,730.99 = 3,666.62/x
  3. Step 3: Cross multiply
    13,156.48x = 19,730.99 × 3,666.62
  4. Step 4: Simplify right side
    13,156.48x = 72,345,990.06
  5. Step 5: Solve for x
    x = 72,345,990.06/13,156.48
  6. Step 6: Final answer
    x = 5,498.89

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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.