Home / 13,112.73-18,094.21-7,806.53

Finding the Fourth Proportional to 13,112.73, 18,094.21 and 7,806.53

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Solution

The fourth proportional to 13,112.73, 18,094.21 and 7,806.53 is: 10,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.73 : 18,094.21 = 7,806.53 : x
  2. Step 2: Convert to fraction form
    13,112.73/18,094.21 = 7,806.53/x
  3. Step 3: Cross multiply
    13,112.73x = 18,094.21 × 7,806.53
  4. Step 4: Simplify right side
    13,112.73x = 141,253,018.91
  5. Step 5: Solve for x
    x = 141,253,018.91/13,112.73
  6. Step 6: Final answer
    x = 10,772.21

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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.