Home / 12,064.60-18,116.10-8,186.20

Finding the Fourth Proportional to 12,064.60, 18,116.10 and 8,186.20

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Solution

The fourth proportional to 12,064.60, 18,116.10 and 8,186.20 is: 12,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,064.60 : 18,116.10 = 8,186.20 : x
  2. Step 2: Convert to fraction form
    12,064.60/18,116.10 = 8,186.20/x
  3. Step 3: Cross multiply
    12,064.60x = 18,116.10 × 8,186.20
  4. Step 4: Simplify right side
    12,064.60x = 148,302,017.82
  5. Step 5: Solve for x
    x = 148,302,017.82/12,064.60
  6. Step 6: Final answer
    x = 12,292.33

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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.