Home / 11,018.98-15,198.67-7,038.30

Finding the Fourth Proportional to 11,018.98, 15,198.67 and 7,038.30

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Solution

The fourth proportional to 11,018.98, 15,198.67 and 7,038.30 is: 9,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.98 : 15,198.67 = 7,038.30 : x
  2. Step 2: Convert to fraction form
    11,018.98/15,198.67 = 7,038.30/x
  3. Step 3: Cross multiply
    11,018.98x = 15,198.67 × 7,038.30
  4. Step 4: Simplify right side
    11,018.98x = 106,972,799.06
  5. Step 5: Solve for x
    x = 106,972,799.06/11,018.98
  6. Step 6: Final answer
    x = 9,708.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.