Home / 12,125.43-16,724.15-8,349.81

Finding the Fourth Proportional to 12,125.43, 16,724.15 and 8,349.81

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Solution

The fourth proportional to 12,125.43, 16,724.15 and 8,349.81 is: 11,516.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.43 : 16,724.15 = 8,349.81 : x
  2. Step 2: Convert to fraction form
    12,125.43/16,724.15 = 8,349.81/x
  3. Step 3: Cross multiply
    12,125.43x = 16,724.15 × 8,349.81
  4. Step 4: Simplify right side
    12,125.43x = 139,643,433.16
  5. Step 5: Solve for x
    x = 139,643,433.16/12,125.43
  6. Step 6: Final answer
    x = 11,516.58

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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.