Home / 12,546.41-17,313.78-7,765.08

Finding the Fourth Proportional to 12,546.41, 17,313.78 and 7,765.08

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Solution

The fourth proportional to 12,546.41, 17,313.78 and 7,765.08 is: 10,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.41 : 17,313.78 = 7,765.08 : x
  2. Step 2: Convert to fraction form
    12,546.41/17,313.78 = 7,765.08/x
  3. Step 3: Cross multiply
    12,546.41x = 17,313.78 × 7,765.08
  4. Step 4: Simplify right side
    12,546.41x = 134,442,886.80
  5. Step 5: Solve for x
    x = 134,442,886.80/12,546.41
  6. Step 6: Final answer
    x = 10,715.65

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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.