Home / 8,677.79-12,997.78-4,505.21

Finding the Fourth Proportional to 8,677.79, 12,997.78 and 4,505.21

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Solution

The fourth proportional to 8,677.79, 12,997.78 and 4,505.21 is: 6,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.79 : 12,997.78 = 4,505.21 : x
  2. Step 2: Convert to fraction form
    8,677.79/12,997.78 = 4,505.21/x
  3. Step 3: Cross multiply
    8,677.79x = 12,997.78 × 4,505.21
  4. Step 4: Simplify right side
    8,677.79x = 58,557,728.43
  5. Step 5: Solve for x
    x = 58,557,728.43/8,677.79
  6. Step 6: Final answer
    x = 6,748.00

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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.