Home / 12,983.93-19,475.90-3,123.22

Finding the Fourth Proportional to 12,983.93, 19,475.90 and 3,123.22

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Solution

The fourth proportional to 12,983.93, 19,475.90 and 3,123.22 is: 4,684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.93 : 19,475.90 = 3,123.22 : x
  2. Step 2: Convert to fraction form
    12,983.93/19,475.90 = 3,123.22/x
  3. Step 3: Cross multiply
    12,983.93x = 19,475.90 × 3,123.22
  4. Step 4: Simplify right side
    12,983.93x = 60,827,520.40
  5. Step 5: Solve for x
    x = 60,827,520.40/12,983.93
  6. Step 6: Final answer
    x = 4,684.83

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Double scale
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Similar ratio
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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.