Home / 12,716.32-17,548.98-7,679.56

Finding the Fourth Proportional to 12,716.32, 17,548.98 and 7,679.56

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Solution

The fourth proportional to 12,716.32, 17,548.98 and 7,679.56 is: 10,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.32 : 17,548.98 = 7,679.56 : x
  2. Step 2: Convert to fraction form
    12,716.32/17,548.98 = 7,679.56/x
  3. Step 3: Cross multiply
    12,716.32x = 17,548.98 × 7,679.56
  4. Step 4: Simplify right side
    12,716.32x = 134,768,444.85
  5. Step 5: Solve for x
    x = 134,768,444.85/12,716.32
  6. Step 6: Final answer
    x = 10,598.07

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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.