Home / 9,279.08-12,804.90-5,299.94

Finding the Fourth Proportional to 9,279.08, 12,804.90 and 5,299.94

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Solution

The fourth proportional to 9,279.08, 12,804.90 and 5,299.94 is: 7,313.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.08 : 12,804.90 = 5,299.94 : x
  2. Step 2: Convert to fraction form
    9,279.08/12,804.90 = 5,299.94/x
  3. Step 3: Cross multiply
    9,279.08x = 12,804.90 × 5,299.94
  4. Step 4: Simplify right side
    9,279.08x = 67,865,201.71
  5. Step 5: Solve for x
    x = 67,865,201.71/9,279.08
  6. Step 6: Final answer
    x = 7,313.79

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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.