Home / 12,118.30-18,177.46-6,276.70

Finding the Fourth Proportional to 12,118.30, 18,177.46 and 6,276.70

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Solution

The fourth proportional to 12,118.30, 18,177.46 and 6,276.70 is: 9,415.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.30 : 18,177.46 = 6,276.70 : x
  2. Step 2: Convert to fraction form
    12,118.30/18,177.46 = 6,276.70/x
  3. Step 3: Cross multiply
    12,118.30x = 18,177.46 × 6,276.70
  4. Step 4: Simplify right side
    12,118.30x = 114,094,463.18
  5. Step 5: Solve for x
    x = 114,094,463.18/12,118.30
  6. Step 6: Final answer
    x = 9,415.06

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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.