Home / 9,078.30-13,588.14-4,689.72

Finding the Fourth Proportional to 9,078.30, 13,588.14 and 4,689.72

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Solution

The fourth proportional to 9,078.30, 13,588.14 and 4,689.72 is: 7,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.30 : 13,588.14 = 4,689.72 : x
  2. Step 2: Convert to fraction form
    9,078.30/13,588.14 = 4,689.72/x
  3. Step 3: Cross multiply
    9,078.30x = 13,588.14 × 4,689.72
  4. Step 4: Simplify right side
    9,078.30x = 63,724,571.92
  5. Step 5: Solve for x
    x = 63,724,571.92/9,078.30
  6. Step 6: Final answer
    x = 7,019.44

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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.