Home / 11,178.29-15,425.72-6,332.56

Finding the Fourth Proportional to 11,178.29, 15,425.72 and 6,332.56

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Solution

The fourth proportional to 11,178.29, 15,425.72 and 6,332.56 is: 8,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.29 : 15,425.72 = 6,332.56 : x
  2. Step 2: Convert to fraction form
    11,178.29/15,425.72 = 6,332.56/x
  3. Step 3: Cross multiply
    11,178.29x = 15,425.72 × 6,332.56
  4. Step 4: Simplify right side
    11,178.29x = 97,684,319.92
  5. Step 5: Solve for x
    x = 97,684,319.92/11,178.29
  6. Step 6: Final answer
    x = 8,738.76

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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.