Home / 12,928.70-19,374.60-7,370.30

Finding the Fourth Proportional to 12,928.70, 19,374.60 and 7,370.30

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Solution

The fourth proportional to 12,928.70, 19,374.60 and 7,370.30 is: 11,044.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.70 : 19,374.60 = 7,370.30 : x
  2. Step 2: Convert to fraction form
    12,928.70/19,374.60 = 7,370.30/x
  3. Step 3: Cross multiply
    12,928.70x = 19,374.60 × 7,370.30
  4. Step 4: Simplify right side
    12,928.70x = 142,796,614.38
  5. Step 5: Solve for x
    x = 142,796,614.38/12,928.70
  6. Step 6: Final answer
    x = 11,044.93

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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.