Home / 12,340.31-17,018.37-10,554.49

Finding the Fourth Proportional to 12,340.31, 17,018.37 and 10,554.49

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Solution

The fourth proportional to 12,340.31, 17,018.37 and 10,554.49 is: 14,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.31 : 17,018.37 = 10,554.49 : x
  2. Step 2: Convert to fraction form
    12,340.31/17,018.37 = 10,554.49/x
  3. Step 3: Cross multiply
    12,340.31x = 17,018.37 × 10,554.49
  4. Step 4: Simplify right side
    12,340.31x = 179,620,215.98
  5. Step 5: Solve for x
    x = 179,620,215.98/12,340.31
  6. Step 6: Final answer
    x = 14,555.57

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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.