Home / 12,080.48-18,119.76-4,288.28

Finding the Fourth Proportional to 12,080.48, 18,119.76 and 4,288.28

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Solution

The fourth proportional to 12,080.48, 18,119.76 and 4,288.28 is: 6,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.48 : 18,119.76 = 4,288.28 : x
  2. Step 2: Convert to fraction form
    12,080.48/18,119.76 = 4,288.28/x
  3. Step 3: Cross multiply
    12,080.48x = 18,119.76 × 4,288.28
  4. Step 4: Simplify right side
    12,080.48x = 77,702,604.41
  5. Step 5: Solve for x
    x = 77,702,604.41/12,080.48
  6. Step 6: Final answer
    x = 6,432.08

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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.