Home / 8,776.89-12,112.14-5,240.03

Finding the Fourth Proportional to 8,776.89, 12,112.14 and 5,240.03

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Solution

The fourth proportional to 8,776.89, 12,112.14 and 5,240.03 is: 7,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.89 : 12,112.14 = 5,240.03 : x
  2. Step 2: Convert to fraction form
    8,776.89/12,112.14 = 5,240.03/x
  3. Step 3: Cross multiply
    8,776.89x = 12,112.14 × 5,240.03
  4. Step 4: Simplify right side
    8,776.89x = 63,467,890.20
  5. Step 5: Solve for x
    x = 63,467,890.20/8,776.89
  6. Step 6: Final answer
    x = 7,231.25

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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.