Home / 7,875.14-11,812.44-2,943.32

Finding the Fourth Proportional to 7,875.14, 11,812.44 and 2,943.32

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Solution

The fourth proportional to 7,875.14, 11,812.44 and 2,943.32 is: 4,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.14 : 11,812.44 = 2,943.32 : x
  2. Step 2: Convert to fraction form
    7,875.14/11,812.44 = 2,943.32/x
  3. Step 3: Cross multiply
    7,875.14x = 11,812.44 × 2,943.32
  4. Step 4: Simplify right side
    7,875.14x = 34,767,790.90
  5. Step 5: Solve for x
    x = 34,767,790.90/7,875.14
  6. Step 6: Final answer
    x = 4,414.88

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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.