Home / 8,459.18-12,664.47-6,369.38

Finding the Fourth Proportional to 8,459.18, 12,664.47 and 6,369.38

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Solution

The fourth proportional to 8,459.18, 12,664.47 and 6,369.38 is: 9,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.18 : 12,664.47 = 6,369.38 : x
  2. Step 2: Convert to fraction form
    8,459.18/12,664.47 = 6,369.38/x
  3. Step 3: Cross multiply
    8,459.18x = 12,664.47 × 6,369.38
  4. Step 4: Simplify right side
    8,459.18x = 80,664,821.93
  5. Step 5: Solve for x
    x = 80,664,821.93/8,459.18
  6. Step 6: Final answer
    x = 9,535.77

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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.