Home / 12,040.20-18,060.30-6,208.20

Finding the Fourth Proportional to 12,040.20, 18,060.30 and 6,208.20

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Solution

The fourth proportional to 12,040.20, 18,060.30 and 6,208.20 is: 9,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.20 : 18,060.30 = 6,208.20 : x
  2. Step 2: Convert to fraction form
    12,040.20/18,060.30 = 6,208.20/x
  3. Step 3: Cross multiply
    12,040.20x = 18,060.30 × 6,208.20
  4. Step 4: Simplify right side
    12,040.20x = 112,121,954.46
  5. Step 5: Solve for x
    x = 112,121,954.46/12,040.20
  6. Step 6: Final answer
    x = 9,312.30

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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.