Home / 13,802.25-19,049.58-8,136.66

Finding the Fourth Proportional to 13,802.25, 19,049.58 and 8,136.66

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Solution

The fourth proportional to 13,802.25, 19,049.58 and 8,136.66 is: 11,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.25 : 19,049.58 = 8,136.66 : x
  2. Step 2: Convert to fraction form
    13,802.25/19,049.58 = 8,136.66/x
  3. Step 3: Cross multiply
    13,802.25x = 19,049.58 × 8,136.66
  4. Step 4: Simplify right side
    13,802.25x = 154,999,955.60
  5. Step 5: Solve for x
    x = 154,999,955.60/13,802.25
  6. Step 6: Final answer
    x = 11,230.05

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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.