Home / 15,293.50-21,115.32-9,559.66

Finding the Fourth Proportional to 15,293.50, 21,115.32 and 9,559.66

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Solution

The fourth proportional to 15,293.50, 21,115.32 and 9,559.66 is: 13,198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.50 : 21,115.32 = 9,559.66 : x
  2. Step 2: Convert to fraction form
    15,293.50/21,115.32 = 9,559.66/x
  3. Step 3: Cross multiply
    15,293.50x = 21,115.32 × 9,559.66
  4. Step 4: Simplify right side
    15,293.50x = 201,855,279.99
  5. Step 5: Solve for x
    x = 201,855,279.99/15,293.50
  6. Step 6: Final answer
    x = 13,198.76

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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.