Home / 9,078.29-13,619.63-3,154.32

Finding the Fourth Proportional to 9,078.29, 13,619.63 and 3,154.32

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Solution

The fourth proportional to 9,078.29, 13,619.63 and 3,154.32 is: 4,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.29 : 13,619.63 = 3,154.32 : x
  2. Step 2: Convert to fraction form
    9,078.29/13,619.63 = 3,154.32/x
  3. Step 3: Cross multiply
    9,078.29x = 13,619.63 × 3,154.32
  4. Step 4: Simplify right side
    9,078.29x = 42,960,623.14
  5. Step 5: Solve for x
    x = 42,960,623.14/9,078.29
  6. Step 6: Final answer
    x = 4,732.24

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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.