Home / 16,988.88-25,457.33-7,122.78

Finding the Fourth Proportional to 16,988.88, 25,457.33 and 7,122.78

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Solution

The fourth proportional to 16,988.88, 25,457.33 and 7,122.78 is: 10,673.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988.88 : 25,457.33 = 7,122.78 : x
  2. Step 2: Convert to fraction form
    16,988.88/25,457.33 = 7,122.78/x
  3. Step 3: Cross multiply
    16,988.88x = 25,457.33 × 7,122.78
  4. Step 4: Simplify right side
    16,988.88x = 181,326,833.69
  5. Step 5: Solve for x
    x = 181,326,833.69/16,988.88
  6. Step 6: Final answer
    x = 10,673.27

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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.