Home / 9,727.68-13,424.28-5,478.60

Finding the Fourth Proportional to 9,727.68, 13,424.28 and 5,478.60

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Solution

The fourth proportional to 9,727.68, 13,424.28 and 5,478.60 is: 7,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,727.68 : 13,424.28 = 5,478.60 : x
  2. Step 2: Convert to fraction form
    9,727.68/13,424.28 = 5,478.60/x
  3. Step 3: Cross multiply
    9,727.68x = 13,424.28 × 5,478.60
  4. Step 4: Simplify right side
    9,727.68x = 73,546,260.41
  5. Step 5: Solve for x
    x = 73,546,260.41/9,727.68
  6. Step 6: Final answer
    x = 7,560.51

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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.