Home / 17,918.24-26,878.72-4,770.56

Finding the Fourth Proportional to 17,918.24, 26,878.72 and 4,770.56

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Solution

The fourth proportional to 17,918.24, 26,878.72 and 4,770.56 is: 7,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.24 : 26,878.72 = 4,770.56 : x
  2. Step 2: Convert to fraction form
    17,918.24/26,878.72 = 4,770.56/x
  3. Step 3: Cross multiply
    17,918.24x = 26,878.72 × 4,770.56
  4. Step 4: Simplify right side
    17,918.24x = 128,226,546.48
  5. Step 5: Solve for x
    x = 128,226,546.48/17,918.24
  6. Step 6: Final answer
    x = 7,156.20

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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.