Home / 8,100.08-11,178.34-4,742.58

Finding the Fourth Proportional to 8,100.08, 11,178.34 and 4,742.58

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Solution

The fourth proportional to 8,100.08, 11,178.34 and 4,742.58 is: 6,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.08 : 11,178.34 = 4,742.58 : x
  2. Step 2: Convert to fraction form
    8,100.08/11,178.34 = 4,742.58/x
  3. Step 3: Cross multiply
    8,100.08x = 11,178.34 × 4,742.58
  4. Step 4: Simplify right side
    8,100.08x = 53,014,127.47
  5. Step 5: Solve for x
    x = 53,014,127.47/8,100.08
  6. Step 6: Final answer
    x = 6,544.89

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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.