Home / 15,338.57-21,167.73-8,625.49

Finding the Fourth Proportional to 15,338.57, 21,167.73 and 8,625.49

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Solution

The fourth proportional to 15,338.57, 21,167.73 and 8,625.49 is: 11,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.57 : 21,167.73 = 8,625.49 : x
  2. Step 2: Convert to fraction form
    15,338.57/21,167.73 = 8,625.49/x
  3. Step 3: Cross multiply
    15,338.57x = 21,167.73 × 8,625.49
  4. Step 4: Simplify right side
    15,338.57x = 182,581,990.52
  5. Step 5: Solve for x
    x = 182,581,990.52/15,338.57
  6. Step 6: Final answer
    x = 11,903.46

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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.