Home / 12,769.70-19,154.56-3,535.70

Finding the Fourth Proportional to 12,769.70, 19,154.56 and 3,535.70

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Solution

The fourth proportional to 12,769.70, 19,154.56 and 3,535.70 is: 5,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.70 : 19,154.56 = 3,535.70 : x
  2. Step 2: Convert to fraction form
    12,769.70/19,154.56 = 3,535.70/x
  3. Step 3: Cross multiply
    12,769.70x = 19,154.56 × 3,535.70
  4. Step 4: Simplify right side
    12,769.70x = 67,724,816.84
  5. Step 5: Solve for x
    x = 67,724,816.84/12,769.70
  6. Step 6: Final answer
    x = 5,303.55

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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.