Home / 9,278.96-12,804.70-5,299.99

Finding the Fourth Proportional to 9,278.96, 12,804.70 and 5,299.99

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Solution

The fourth proportional to 9,278.96, 12,804.70 and 5,299.99 is: 7,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.96 : 12,804.70 = 5,299.99 : x
  2. Step 2: Convert to fraction form
    9,278.96/12,804.70 = 5,299.99/x
  3. Step 3: Cross multiply
    9,278.96x = 12,804.70 × 5,299.99
  4. Step 4: Simplify right side
    9,278.96x = 67,864,781.95
  5. Step 5: Solve for x
    x = 67,864,781.95/9,278.96
  6. Step 6: Final answer
    x = 7,313.83

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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.