Home / 9,078.20-12,529.17-5,099.61

Finding the Fourth Proportional to 9,078.20, 12,529.17 and 5,099.61

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Solution

The fourth proportional to 9,078.20, 12,529.17 and 5,099.61 is: 7,038.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.20 : 12,529.17 = 5,099.61 : x
  2. Step 2: Convert to fraction form
    9,078.20/12,529.17 = 5,099.61/x
  3. Step 3: Cross multiply
    9,078.20x = 12,529.17 × 5,099.61
  4. Step 4: Simplify right side
    9,078.20x = 63,893,880.62
  5. Step 5: Solve for x
    x = 63,893,880.62/9,078.20
  6. Step 6: Final answer
    x = 7,038.17

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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.