Home / 11,918.76-16,447.50-6,614.07

Finding the Fourth Proportional to 11,918.76, 16,447.50 and 6,614.07

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Solution

The fourth proportional to 11,918.76, 16,447.50 and 6,614.07 is: 9,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.76 : 16,447.50 = 6,614.07 : x
  2. Step 2: Convert to fraction form
    11,918.76/16,447.50 = 6,614.07/x
  3. Step 3: Cross multiply
    11,918.76x = 16,447.50 × 6,614.07
  4. Step 4: Simplify right side
    11,918.76x = 108,784,916.33
  5. Step 5: Solve for x
    x = 108,784,916.33/11,918.76
  6. Step 6: Final answer
    x = 9,127.20

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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.