Home / 10,956.87-15,122.42-6,483.09

Finding the Fourth Proportional to 10,956.87, 15,122.42 and 6,483.09

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Solution

The fourth proportional to 10,956.87, 15,122.42 and 6,483.09 is: 8,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.87 : 15,122.42 = 6,483.09 : x
  2. Step 2: Convert to fraction form
    10,956.87/15,122.42 = 6,483.09/x
  3. Step 3: Cross multiply
    10,956.87x = 15,122.42 × 6,483.09
  4. Step 4: Simplify right side
    10,956.87x = 98,039,991.65
  5. Step 5: Solve for x
    x = 98,039,991.65/10,956.87
  6. Step 6: Final answer
    x = 8,947.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.