Home / 11,009.32-15,213.63-8,351.98

Finding the Fourth Proportional to 11,009.32, 15,213.63 and 8,351.98

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Solution

The fourth proportional to 11,009.32, 15,213.63 and 8,351.98 is: 11,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.32 : 15,213.63 = 8,351.98 : x
  2. Step 2: Convert to fraction form
    11,009.32/15,213.63 = 8,351.98/x
  3. Step 3: Cross multiply
    11,009.32x = 15,213.63 × 8,351.98
  4. Step 4: Simplify right side
    11,009.32x = 127,063,933.49
  5. Step 5: Solve for x
    x = 127,063,933.49/11,009.32
  6. Step 6: Final answer
    x = 11,541.49

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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.