Home / 9,776.04-13,490.96-5,299.78

Finding the Fourth Proportional to 9,776.04, 13,490.96 and 5,299.78

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Solution

The fourth proportional to 9,776.04, 13,490.96 and 5,299.78 is: 7,313.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,776.04 : 13,490.96 = 5,299.78 : x
  2. Step 2: Convert to fraction form
    9,776.04/13,490.96 = 5,299.78/x
  3. Step 3: Cross multiply
    9,776.04x = 13,490.96 × 5,299.78
  4. Step 4: Simplify right side
    9,776.04x = 71,499,119.99
  5. Step 5: Solve for x
    x = 71,499,119.99/9,776.04
  6. Step 6: Final answer
    x = 7,313.71

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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.