Home / 11,989.12-16,545.01-6,683.82

Finding the Fourth Proportional to 11,989.12, 16,545.01 and 6,683.82

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Solution

The fourth proportional to 11,989.12, 16,545.01 and 6,683.82 is: 9,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.12 : 16,545.01 = 6,683.82 : x
  2. Step 2: Convert to fraction form
    11,989.12/16,545.01 = 6,683.82/x
  3. Step 3: Cross multiply
    11,989.12x = 16,545.01 × 6,683.82
  4. Step 4: Simplify right side
    11,989.12x = 110,583,868.74
  5. Step 5: Solve for x
    x = 110,583,868.74/11,989.12
  6. Step 6: Final answer
    x = 9,223.69

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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.