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Finding the Fourth Proportional to 18,499.77, 27,748.89 and 6,653.91

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Solution

The fourth proportional to 18,499.77, 27,748.89 and 6,653.91 is: 9,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.77 : 27,748.89 = 6,653.91 : x
  2. Step 2: Convert to fraction form
    18,499.77/27,748.89 = 6,653.91/x
  3. Step 3: Cross multiply
    18,499.77x = 27,748.89 × 6,653.91
  4. Step 4: Simplify right side
    18,499.77x = 184,638,616.66
  5. Step 5: Solve for x
    x = 184,638,616.66/18,499.77
  6. Step 6: Final answer
    x = 9,980.59

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1.5x scale

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.