Home / 9,727.46-13,424.21-5,478.60

Finding the Fourth Proportional to 9,727.46, 13,424.21 and 5,478.60

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Solution

The fourth proportional to 9,727.46, 13,424.21 and 5,478.60 is: 7,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,727.46 : 13,424.21 = 5,478.60 : x
  2. Step 2: Convert to fraction form
    9,727.46/13,424.21 = 5,478.60/x
  3. Step 3: Cross multiply
    9,727.46x = 13,424.21 × 5,478.60
  4. Step 4: Simplify right side
    9,727.46x = 73,545,809.78
  5. Step 5: Solve for x
    x = 73,545,809.78/9,727.46
  6. Step 6: Final answer
    x = 7,560.64

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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.