Home / 13,104.84-18,084.42-7,136.58

Finding the Fourth Proportional to 13,104.84, 18,084.42 and 7,136.58

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Solution

The fourth proportional to 13,104.84, 18,084.42 and 7,136.58 is: 9,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.84 : 18,084.42 = 7,136.58 : x
  2. Step 2: Convert to fraction form
    13,104.84/18,084.42 = 7,136.58/x
  3. Step 3: Cross multiply
    13,104.84x = 18,084.42 × 7,136.58
  4. Step 4: Simplify right side
    13,104.84x = 129,060,910.08
  5. Step 5: Solve for x
    x = 129,060,910.08/13,104.84
  6. Step 6: Final answer
    x = 9,848.34

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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.