Home / 7,345.28-10,991.52-5,392.64

Finding the Fourth Proportional to 7,345.28, 10,991.52 and 5,392.64

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Solution

The fourth proportional to 7,345.28, 10,991.52 and 5,392.64 is: 8,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.28 : 10,991.52 = 5,392.64 : x
  2. Step 2: Convert to fraction form
    7,345.28/10,991.52 = 5,392.64/x
  3. Step 3: Cross multiply
    7,345.28x = 10,991.52 × 5,392.64
  4. Step 4: Simplify right side
    7,345.28x = 59,273,310.41
  5. Step 5: Solve for x
    x = 59,273,310.41/7,345.28
  6. Step 6: Final answer
    x = 8,069.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.