Home / 11,164.32-15,409.98-8,941.68

Finding the Fourth Proportional to 11,164.32, 15,409.98 and 8,941.68

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Solution

The fourth proportional to 11,164.32, 15,409.98 and 8,941.68 is: 12,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.32 : 15,409.98 = 8,941.68 : x
  2. Step 2: Convert to fraction form
    11,164.32/15,409.98 = 8,941.68/x
  3. Step 3: Cross multiply
    11,164.32x = 15,409.98 × 8,941.68
  4. Step 4: Simplify right side
    11,164.32x = 137,791,109.97
  5. Step 5: Solve for x
    x = 137,791,109.97/11,164.32
  6. Step 6: Final answer
    x = 12,342.10

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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.