Home / 12,405.04-18,610.30-4,084.72

Finding the Fourth Proportional to 12,405.04, 18,610.30 and 4,084.72

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Solution

The fourth proportional to 12,405.04, 18,610.30 and 4,084.72 is: 6,127.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.04 : 18,610.30 = 4,084.72 : x
  2. Step 2: Convert to fraction form
    12,405.04/18,610.30 = 4,084.72/x
  3. Step 3: Cross multiply
    12,405.04x = 18,610.30 × 4,084.72
  4. Step 4: Simplify right side
    12,405.04x = 76,017,864.62
  5. Step 5: Solve for x
    x = 76,017,864.62/12,405.04
  6. Step 6: Final answer
    x = 6,127.98

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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.