Home / 12,760.26-19,140.38-7,550.34

Finding the Fourth Proportional to 12,760.26, 19,140.38 and 7,550.34

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Solution

The fourth proportional to 12,760.26, 19,140.38 and 7,550.34 is: 11,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.26 : 19,140.38 = 7,550.34 : x
  2. Step 2: Convert to fraction form
    12,760.26/19,140.38 = 7,550.34/x
  3. Step 3: Cross multiply
    12,760.26x = 19,140.38 × 7,550.34
  4. Step 4: Simplify right side
    12,760.26x = 144,516,376.73
  5. Step 5: Solve for x
    x = 144,516,376.73/12,760.26
  6. Step 6: Final answer
    x = 11,325.50

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Half scale
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Double scale
Find fourth proportional to 12,761.26, 19,141.88 and 7,551.34
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.