Home / 9,284.96-12,815.07-5,305.70

Finding the Fourth Proportional to 9,284.96, 12,815.07 and 5,305.70

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Solution

The fourth proportional to 9,284.96, 12,815.07 and 5,305.70 is: 7,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,284.96 : 12,815.07 = 5,305.70 : x
  2. Step 2: Convert to fraction form
    9,284.96/12,815.07 = 5,305.70/x
  3. Step 3: Cross multiply
    9,284.96x = 12,815.07 × 5,305.70
  4. Step 4: Simplify right side
    9,284.96x = 67,992,916.90
  5. Step 5: Solve for x
    x = 67,992,916.90/9,284.96
  6. Step 6: Final answer
    x = 7,322.91

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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.