Home / 12,642.08-18,946.71-8,475.84

Finding the Fourth Proportional to 12,642.08, 18,946.71 and 8,475.84

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Solution

The fourth proportional to 12,642.08, 18,946.71 and 8,475.84 is: 12,702.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642.08 : 18,946.71 = 8,475.84 : x
  2. Step 2: Convert to fraction form
    12,642.08/18,946.71 = 8,475.84/x
  3. Step 3: Cross multiply
    12,642.08x = 18,946.71 × 8,475.84
  4. Step 4: Simplify right side
    12,642.08x = 160,589,282.49
  5. Step 5: Solve for x
    x = 160,589,282.49/12,642.08
  6. Step 6: Final answer
    x = 12,702.76

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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.