Home / 13,162.48-18,169.20-8,127.52

Finding the Fourth Proportional to 13,162.48, 18,169.20 and 8,127.52

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Solution

The fourth proportional to 13,162.48, 18,169.20 and 8,127.52 is: 11,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.48 : 18,169.20 = 8,127.52 : x
  2. Step 2: Convert to fraction form
    13,162.48/18,169.20 = 8,127.52/x
  3. Step 3: Cross multiply
    13,162.48x = 18,169.20 × 8,127.52
  4. Step 4: Simplify right side
    13,162.48x = 147,670,536.38
  5. Step 5: Solve for x
    x = 147,670,536.38/13,162.48
  6. Step 6: Final answer
    x = 11,219.05

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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.