Home / 12,231.52-18,330.72-6,376.12

Finding the Fourth Proportional to 12,231.52, 18,330.72 and 6,376.12

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Solution

The fourth proportional to 12,231.52, 18,330.72 and 6,376.12 is: 9,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.52 : 18,330.72 = 6,376.12 : x
  2. Step 2: Convert to fraction form
    12,231.52/18,330.72 = 6,376.12/x
  3. Step 3: Cross multiply
    12,231.52x = 18,330.72 × 6,376.12
  4. Step 4: Simplify right side
    12,231.52x = 116,878,870.41
  5. Step 5: Solve for x
    x = 116,878,870.41/12,231.52
  6. Step 6: Final answer
    x = 9,555.55

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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.