Home / 9,405.32-12,977.42-5,371.92

Finding the Fourth Proportional to 9,405.32, 12,977.42 and 5,371.92

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Solution

The fourth proportional to 9,405.32, 12,977.42 and 5,371.92 is: 7,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.32 : 12,977.42 = 5,371.92 : x
  2. Step 2: Convert to fraction form
    9,405.32/12,977.42 = 5,371.92/x
  3. Step 3: Cross multiply
    9,405.32x = 12,977.42 × 5,371.92
  4. Step 4: Simplify right side
    9,405.32x = 69,713,635.19
  5. Step 5: Solve for x
    x = 69,713,635.19/9,405.32
  6. Step 6: Final answer
    x = 7,412.15

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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.