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Finding the Fourth Proportional to 6,720.93, 10,080.08 and 6,387.54

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Solution

The fourth proportional to 6,720.93, 10,080.08 and 6,387.54 is: 9,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.93 : 10,080.08 = 6,387.54 : x
  2. Step 2: Convert to fraction form
    6,720.93/10,080.08 = 6,387.54/x
  3. Step 3: Cross multiply
    6,720.93x = 10,080.08 × 6,387.54
  4. Step 4: Simplify right side
    6,720.93x = 64,386,914.20
  5. Step 5: Solve for x
    x = 64,386,914.20/6,720.93
  6. Step 6: Final answer
    x = 9,580.06

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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.