Home / 12,605.28-17,398.44-8,134.08

Finding the Fourth Proportional to 12,605.28, 17,398.44 and 8,134.08

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Solution

The fourth proportional to 12,605.28, 17,398.44 and 8,134.08 is: 11,227.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.28 : 17,398.44 = 8,134.08 : x
  2. Step 2: Convert to fraction form
    12,605.28/17,398.44 = 8,134.08/x
  3. Step 3: Cross multiply
    12,605.28x = 17,398.44 × 8,134.08
  4. Step 4: Simplify right side
    12,605.28x = 141,520,302.84
  5. Step 5: Solve for x
    x = 141,520,302.84/12,605.28
  6. Step 6: Final answer
    x = 11,227.07

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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.