Home / 12,888.37-17,821.74-10,231.17

Finding the Fourth Proportional to 12,888.37, 17,821.74 and 10,231.17

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Solution

The fourth proportional to 12,888.37, 17,821.74 and 10,231.17 is: 14,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.37 : 17,821.74 = 10,231.17 : x
  2. Step 2: Convert to fraction form
    12,888.37/17,821.74 = 10,231.17/x
  3. Step 3: Cross multiply
    12,888.37x = 17,821.74 × 10,231.17
  4. Step 4: Simplify right side
    12,888.37x = 182,337,251.64
  5. Step 5: Solve for x
    x = 182,337,251.64/12,888.37
  6. Step 6: Final answer
    x = 14,147.43

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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.