Home / 11,169.32-15,415.76-7,392.68

Finding the Fourth Proportional to 11,169.32, 15,415.76 and 7,392.68

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Solution

The fourth proportional to 11,169.32, 15,415.76 and 7,392.68 is: 10,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.32 : 15,415.76 = 7,392.68 : x
  2. Step 2: Convert to fraction form
    11,169.32/15,415.76 = 7,392.68/x
  3. Step 3: Cross multiply
    11,169.32x = 15,415.76 × 7,392.68
  4. Step 4: Simplify right side
    11,169.32x = 113,963,780.64
  5. Step 5: Solve for x
    x = 113,963,780.64/11,169.32
  6. Step 6: Final answer
    x = 10,203.29

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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.