Home / 11,240.98-15,399.99-10,820.32

Finding the Fourth Proportional to 11,240.98, 15,399.99 and 10,820.32

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Solution

The fourth proportional to 11,240.98, 15,399.99 and 10,820.32 is: 14,823.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.98 : 15,399.99 = 10,820.32 : x
  2. Step 2: Convert to fraction form
    11,240.98/15,399.99 = 10,820.32/x
  3. Step 3: Cross multiply
    11,240.98x = 15,399.99 × 10,820.32
  4. Step 4: Simplify right side
    11,240.98x = 166,632,781.30
  5. Step 5: Solve for x
    x = 166,632,781.30/11,240.98
  6. Step 6: Final answer
    x = 14,823.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.