Home / 11,990.09-16,545.72-6,613.46

Finding the Fourth Proportional to 11,990.09, 16,545.72 and 6,613.46

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Solution

The fourth proportional to 11,990.09, 16,545.72 and 6,613.46 is: 9,126.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.09 : 16,545.72 = 6,613.46 : x
  2. Step 2: Convert to fraction form
    11,990.09/16,545.72 = 6,613.46/x
  3. Step 3: Cross multiply
    11,990.09x = 16,545.72 × 6,613.46
  4. Step 4: Simplify right side
    11,990.09x = 109,424,465.69
  5. Step 5: Solve for x
    x = 109,424,465.69/11,990.09
  6. Step 6: Final answer
    x = 9,126.24

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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.