Home / 9,719.53-13,412.92-5,527.78

Finding the Fourth Proportional to 9,719.53, 13,412.92 and 5,527.78

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Solution

The fourth proportional to 9,719.53, 13,412.92 and 5,527.78 is: 7,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.53 : 13,412.92 = 5,527.78 : x
  2. Step 2: Convert to fraction form
    9,719.53/13,412.92 = 5,527.78/x
  3. Step 3: Cross multiply
    9,719.53x = 13,412.92 × 5,527.78
  4. Step 4: Simplify right side
    9,719.53x = 74,143,670.92
  5. Step 5: Solve for x
    x = 74,143,670.92/9,719.53
  6. Step 6: Final answer
    x = 7,628.32

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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.