Home / 11,473.26-15,809.67-8,905.56

Finding the Fourth Proportional to 11,473.26, 15,809.67 and 8,905.56

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Solution

The fourth proportional to 11,473.26, 15,809.67 and 8,905.56 is: 12,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,473.26 : 15,809.67 = 8,905.56 : x
  2. Step 2: Convert to fraction form
    11,473.26/15,809.67 = 8,905.56/x
  3. Step 3: Cross multiply
    11,473.26x = 15,809.67 × 8,905.56
  4. Step 4: Simplify right side
    11,473.26x = 140,793,964.77
  5. Step 5: Solve for x
    x = 140,793,964.77/11,473.26
  6. Step 6: Final answer
    x = 12,271.49

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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.