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Finding the Fourth Proportional to 8,011.60, 11,049.80 and 5,358.16

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Solution

The fourth proportional to 8,011.60, 11,049.80 and 5,358.16 is: 7,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.60 : 11,049.80 = 5,358.16 : x
  2. Step 2: Convert to fraction form
    8,011.60/11,049.80 = 5,358.16/x
  3. Step 3: Cross multiply
    8,011.60x = 11,049.80 × 5,358.16
  4. Step 4: Simplify right side
    8,011.60x = 59,206,596.37
  5. Step 5: Solve for x
    x = 59,206,596.37/8,011.60
  6. Step 6: Final answer
    x = 7,390.11

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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.