Home / 8,811.08-12,160.84-6,693.62

Finding the Fourth Proportional to 8,811.08, 12,160.84 and 6,693.62

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Solution

The fourth proportional to 8,811.08, 12,160.84 and 6,693.62 is: 9,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.08 : 12,160.84 = 6,693.62 : x
  2. Step 2: Convert to fraction form
    8,811.08/12,160.84 = 6,693.62/x
  3. Step 3: Cross multiply
    8,811.08x = 12,160.84 × 6,693.62
  4. Step 4: Simplify right side
    8,811.08x = 81,400,041.84
  5. Step 5: Solve for x
    x = 81,400,041.84/8,811.08
  6. Step 6: Final answer
    x = 9,238.37

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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.