Home / 19,845.28-29,768.10-6,518.08

Finding the Fourth Proportional to 19,845.28, 29,768.10 and 6,518.08

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Solution

The fourth proportional to 19,845.28, 29,768.10 and 6,518.08 is: 9,777.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.28 : 29,768.10 = 6,518.08 : x
  2. Step 2: Convert to fraction form
    19,845.28/29,768.10 = 6,518.08/x
  3. Step 3: Cross multiply
    19,845.28x = 29,768.10 × 6,518.08
  4. Step 4: Simplify right side
    19,845.28x = 194,030,857.25
  5. Step 5: Solve for x
    x = 194,030,857.25/19,845.28
  6. Step 6: Final answer
    x = 9,777.18

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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.