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Finding the Fourth Proportional to 6,415.58, 8,859.60 and 6,066.13

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Solution

The fourth proportional to 6,415.58, 8,859.60 and 6,066.13 is: 8,377.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.58 : 8,859.60 = 6,066.13 : x
  2. Step 2: Convert to fraction form
    6,415.58/8,859.60 = 6,066.13/x
  3. Step 3: Cross multiply
    6,415.58x = 8,859.60 × 6,066.13
  4. Step 4: Simplify right side
    6,415.58x = 53,743,485.35
  5. Step 5: Solve for x
    x = 53,743,485.35/6,415.58
  6. Step 6: Final answer
    x = 8,377.03

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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.