Home / 18,342.87-27,518.50-6,656.09

Finding the Fourth Proportional to 18,342.87, 27,518.50 and 6,656.09

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Solution

The fourth proportional to 18,342.87, 27,518.50 and 6,656.09 is: 9,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.87 : 27,518.50 = 6,656.09 : x
  2. Step 2: Convert to fraction form
    18,342.87/27,518.50 = 6,656.09/x
  3. Step 3: Cross multiply
    18,342.87x = 27,518.50 × 6,656.09
  4. Step 4: Simplify right side
    18,342.87x = 183,165,483.39
  5. Step 5: Solve for x
    x = 183,165,483.39/18,342.87
  6. Step 6: Final answer
    x = 9,985.65

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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.