Home / 18,868.79-26,039.06-11,799.35

Finding the Fourth Proportional to 18,868.79, 26,039.06 and 11,799.35

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Solution

The fourth proportional to 18,868.79, 26,039.06 and 11,799.35 is: 16,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.79 : 26,039.06 = 11,799.35 : x
  2. Step 2: Convert to fraction form
    18,868.79/26,039.06 = 11,799.35/x
  3. Step 3: Cross multiply
    18,868.79x = 26,039.06 × 11,799.35
  4. Step 4: Simplify right side
    18,868.79x = 307,243,982.61
  5. Step 5: Solve for x
    x = 307,243,982.61/18,868.79
  6. Step 6: Final answer
    x = 16,283.18

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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.