Home / 12,897.23-17,790.79-9,308.19

Finding the Fourth Proportional to 12,897.23, 17,790.79 and 9,308.19

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Solution

The fourth proportional to 12,897.23, 17,790.79 and 9,308.19 is: 12,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.23 : 17,790.79 = 9,308.19 : x
  2. Step 2: Convert to fraction form
    12,897.23/17,790.79 = 9,308.19/x
  3. Step 3: Cross multiply
    12,897.23x = 17,790.79 × 9,308.19
  4. Step 4: Simplify right side
    12,897.23x = 165,600,064.43
  5. Step 5: Solve for x
    x = 165,600,064.43/12,897.23
  6. Step 6: Final answer
    x = 12,839.98

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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.