Home / 16,988.56-25,456.86-7,122.46

Finding the Fourth Proportional to 16,988.56, 25,456.86 and 7,122.46

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Solution

The fourth proportional to 16,988.56, 25,456.86 and 7,122.46 is: 10,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988.56 : 25,456.86 = 7,122.46 : x
  2. Step 2: Convert to fraction form
    16,988.56/25,456.86 = 7,122.46/x
  3. Step 3: Cross multiply
    16,988.56x = 25,456.86 × 7,122.46
  4. Step 4: Simplify right side
    16,988.56x = 181,315,403.43
  5. Step 5: Solve for x
    x = 181,315,403.43/16,988.56
  6. Step 6: Final answer
    x = 10,672.80

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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.