Home / 12,436.30-18,722.54-11,347.66

Finding the Fourth Proportional to 12,436.30, 18,722.54 and 11,347.66

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Solution

The fourth proportional to 12,436.30, 18,722.54 and 11,347.66 is: 17,083.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.30 : 18,722.54 = 11,347.66 : x
  2. Step 2: Convert to fraction form
    12,436.30/18,722.54 = 11,347.66/x
  3. Step 3: Cross multiply
    12,436.30x = 18,722.54 × 11,347.66
  4. Step 4: Simplify right side
    12,436.30x = 212,457,018.26
  5. Step 5: Solve for x
    x = 212,457,018.26/12,436.30
  6. Step 6: Final answer
    x = 17,083.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.