Home / 13,253.98-18,290.75-7,285.65

Finding the Fourth Proportional to 13,253.98, 18,290.75 and 7,285.65

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Solution

The fourth proportional to 13,253.98, 18,290.75 and 7,285.65 is: 10,054.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.98 : 18,290.75 = 7,285.65 : x
  2. Step 2: Convert to fraction form
    13,253.98/18,290.75 = 7,285.65/x
  3. Step 3: Cross multiply
    13,253.98x = 18,290.75 × 7,285.65
  4. Step 4: Simplify right side
    13,253.98x = 133,259,949.16
  5. Step 5: Solve for x
    x = 133,259,949.16/13,253.98
  6. Step 6: Final answer
    x = 10,054.33

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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.