Home / 12,090.30-18,102.65-6,235.35

Finding the Fourth Proportional to 12,090.30, 18,102.65 and 6,235.35

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Solution

The fourth proportional to 12,090.30, 18,102.65 and 6,235.35 is: 9,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.30 : 18,102.65 = 6,235.35 : x
  2. Step 2: Convert to fraction form
    12,090.30/18,102.65 = 6,235.35/x
  3. Step 3: Cross multiply
    12,090.30x = 18,102.65 × 6,235.35
  4. Step 4: Simplify right side
    12,090.30x = 112,876,327.50
  5. Step 5: Solve for x
    x = 112,876,327.50/12,090.30
  6. Step 6: Final answer
    x = 9,336.11

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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.