Home / 10,133.96-15,201.12-5,457.80

Finding the Fourth Proportional to 10,133.96, 15,201.12 and 5,457.80

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Solution

The fourth proportional to 10,133.96, 15,201.12 and 5,457.80 is: 8,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.96 : 15,201.12 = 5,457.80 : x
  2. Step 2: Convert to fraction form
    10,133.96/15,201.12 = 5,457.80/x
  3. Step 3: Cross multiply
    10,133.96x = 15,201.12 × 5,457.80
  4. Step 4: Simplify right side
    10,133.96x = 82,964,672.74
  5. Step 5: Solve for x
    x = 82,964,672.74/10,133.96
  6. Step 6: Final answer
    x = 8,186.80

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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.