Home / 16,712.20-23,064.90-9,997.80

Finding the Fourth Proportional to 16,712.20, 23,064.90 and 9,997.80

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Solution

The fourth proportional to 16,712.20, 23,064.90 and 9,997.80 is: 13,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,712.20 : 23,064.90 = 9,997.80 : x
  2. Step 2: Convert to fraction form
    16,712.20/23,064.90 = 9,997.80/x
  3. Step 3: Cross multiply
    16,712.20x = 23,064.90 × 9,997.80
  4. Step 4: Simplify right side
    16,712.20x = 230,598,257.22
  5. Step 5: Solve for x
    x = 230,598,257.22/16,712.20
  6. Step 6: Final answer
    x = 13,798.20

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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.