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Finding the Fourth Proportional to 12,903, 17,806.14 and 7,314.36

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Solution

The fourth proportional to 12,903, 17,806.14 and 7,314.36 is: 10,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903 : 17,806.14 = 7,314.36 : x
  2. Step 2: Convert to fraction form
    12,903/17,806.14 = 7,314.36/x
  3. Step 3: Cross multiply
    12,903x = 17,806.14 × 7,314.36
  4. Step 4: Simplify right side
    12,903x = 130,240,518.17
  5. Step 5: Solve for x
    x = 130,240,518.17/12,903
  6. Step 6: Final answer
    x = 10,093.82

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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.