Home / 7,844.05-10,814.28-6,720.16

Finding the Fourth Proportional to 7,844.05, 10,814.28 and 6,720.16

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Solution

The fourth proportional to 7,844.05, 10,814.28 and 6,720.16 is: 9,264.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.05 : 10,814.28 = 6,720.16 : x
  2. Step 2: Convert to fraction form
    7,844.05/10,814.28 = 6,720.16/x
  3. Step 3: Cross multiply
    7,844.05x = 10,814.28 × 6,720.16
  4. Step 4: Simplify right side
    7,844.05x = 72,673,691.88
  5. Step 5: Solve for x
    x = 72,673,691.88/7,844.05
  6. Step 6: Final answer
    x = 9,264.82

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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.