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Finding the Fourth Proportional to 10,579.42, 15,808.41 and 8,066.80

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Solution

The fourth proportional to 10,579.42, 15,808.41 and 8,066.80 is: 12,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.42 : 15,808.41 = 8,066.80 : x
  2. Step 2: Convert to fraction form
    10,579.42/15,808.41 = 8,066.80/x
  3. Step 3: Cross multiply
    10,579.42x = 15,808.41 × 8,066.80
  4. Step 4: Simplify right side
    10,579.42x = 127,523,241.45
  5. Step 5: Solve for x
    x = 127,523,241.45/10,579.42
  6. Step 6: Final answer
    x = 12,053.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.