Home / 11,326.84-15,645.74-8,621.62

Finding the Fourth Proportional to 11,326.84, 15,645.74 and 8,621.62

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Solution

The fourth proportional to 11,326.84, 15,645.74 and 8,621.62 is: 11,909.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.84 : 15,645.74 = 8,621.62 : x
  2. Step 2: Convert to fraction form
    11,326.84/15,645.74 = 8,621.62/x
  3. Step 3: Cross multiply
    11,326.84x = 15,645.74 × 8,621.62
  4. Step 4: Simplify right side
    11,326.84x = 134,891,624.90
  5. Step 5: Solve for x
    x = 134,891,624.90/11,326.84
  6. Step 6: Final answer
    x = 11,909.03

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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.