Home / 12,679.60-17,476.88-9,530.32

Finding the Fourth Proportional to 12,679.60, 17,476.88 and 9,530.32

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Solution

The fourth proportional to 12,679.60, 17,476.88 and 9,530.32 is: 13,136.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.60 : 17,476.88 = 9,530.32 : x
  2. Step 2: Convert to fraction form
    12,679.60/17,476.88 = 9,530.32/x
  3. Step 3: Cross multiply
    12,679.60x = 17,476.88 × 9,530.32
  4. Step 4: Simplify right side
    12,679.60x = 166,560,123.97
  5. Step 5: Solve for x
    x = 166,560,123.97/12,679.60
  6. Step 6: Final answer
    x = 13,136.08

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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.