Home / 12,087.48-18,116.64-6,240.90

Finding the Fourth Proportional to 12,087.48, 18,116.64 and 6,240.90

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Solution

The fourth proportional to 12,087.48, 18,116.64 and 6,240.90 is: 9,353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.48 : 18,116.64 = 6,240.90 : x
  2. Step 2: Convert to fraction form
    12,087.48/18,116.64 = 6,240.90/x
  3. Step 3: Cross multiply
    12,087.48x = 18,116.64 × 6,240.90
  4. Step 4: Simplify right side
    12,087.48x = 113,064,138.58
  5. Step 5: Solve for x
    x = 113,064,138.58/12,087.48
  6. Step 6: Final answer
    x = 9,353.82

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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.