Home / 7,649.12-11,451.26-5,807.45

Finding the Fourth Proportional to 7,649.12, 11,451.26 and 5,807.45

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Solution

The fourth proportional to 7,649.12, 11,451.26 and 5,807.45 is: 8,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.12 : 11,451.26 = 5,807.45 : x
  2. Step 2: Convert to fraction form
    7,649.12/11,451.26 = 5,807.45/x
  3. Step 3: Cross multiply
    7,649.12x = 11,451.26 × 5,807.45
  4. Step 4: Simplify right side
    7,649.12x = 66,502,577.15
  5. Step 5: Solve for x
    x = 66,502,577.15/7,649.12
  6. Step 6: Final answer
    x = 8,694.15

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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.