Home / 11,874.40-16,386.37-6,838.51

Finding the Fourth Proportional to 11,874.40, 16,386.37 and 6,838.51

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Solution

The fourth proportional to 11,874.40, 16,386.37 and 6,838.51 is: 9,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.40 : 16,386.37 = 6,838.51 : x
  2. Step 2: Convert to fraction form
    11,874.40/16,386.37 = 6,838.51/x
  3. Step 3: Cross multiply
    11,874.40x = 16,386.37 × 6,838.51
  4. Step 4: Simplify right side
    11,874.40x = 112,058,355.11
  5. Step 5: Solve for x
    x = 112,058,355.11/11,874.40
  6. Step 6: Final answer
    x = 9,436.97

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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.