Home / 11,207.66-15,440.27-7,798.81

Finding the Fourth Proportional to 11,207.66, 15,440.27 and 7,798.81

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Solution

The fourth proportional to 11,207.66, 15,440.27 and 7,798.81 is: 10,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.66 : 15,440.27 = 7,798.81 : x
  2. Step 2: Convert to fraction form
    11,207.66/15,440.27 = 7,798.81/x
  3. Step 3: Cross multiply
    11,207.66x = 15,440.27 × 7,798.81
  4. Step 4: Simplify right side
    11,207.66x = 120,415,704.49
  5. Step 5: Solve for x
    x = 120,415,704.49/11,207.66
  6. Step 6: Final answer
    x = 10,744.05

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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.