Home / 13,104.90-18,084.52-7,136.46

Finding the Fourth Proportional to 13,104.90, 18,084.52 and 7,136.46

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Solution

The fourth proportional to 13,104.90, 18,084.52 and 7,136.46 is: 9,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.90 : 18,084.52 = 7,136.46 : x
  2. Step 2: Convert to fraction form
    13,104.90/18,084.52 = 7,136.46/x
  3. Step 3: Cross multiply
    13,104.90x = 18,084.52 × 7,136.46
  4. Step 4: Simplify right side
    13,104.90x = 129,059,453.60
  5. Step 5: Solve for x
    x = 129,059,453.60/13,104.90
  6. Step 6: Final answer
    x = 9,848.18

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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.