Home / 13,104.89-18,084.13-7,136.53

Finding the Fourth Proportional to 13,104.89, 18,084.13 and 7,136.53

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Solution

The fourth proportional to 13,104.89, 18,084.13 and 7,136.53 is: 9,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.89 : 18,084.13 = 7,136.53 : x
  2. Step 2: Convert to fraction form
    13,104.89/18,084.13 = 7,136.53/x
  3. Step 3: Cross multiply
    13,104.89x = 18,084.13 × 7,136.53
  4. Step 4: Simplify right side
    13,104.89x = 129,057,873.22
  5. Step 5: Solve for x
    x = 129,057,873.22/13,104.89
  6. Step 6: Final answer
    x = 9,848.07

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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.