Home / 6,780.03-10,190.12-5,617.50

Finding the Fourth Proportional to 6,780.03, 10,190.12 and 5,617.50

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Solution

The fourth proportional to 6,780.03, 10,190.12 and 5,617.50 is: 8,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.03 : 10,190.12 = 5,617.50 : x
  2. Step 2: Convert to fraction form
    6,780.03/10,190.12 = 5,617.50/x
  3. Step 3: Cross multiply
    6,780.03x = 10,190.12 × 5,617.50
  4. Step 4: Simplify right side
    6,780.03x = 57,242,971.01
  5. Step 5: Solve for x
    x = 57,242,971.01/6,780.03
  6. Step 6: Final answer
    x = 8,442.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.