Home / 18,838.12-25,996.90-10,881.96

Finding the Fourth Proportional to 18,838.12, 25,996.90 and 10,881.96

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Solution

The fourth proportional to 18,838.12, 25,996.90 and 10,881.96 is: 15,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.12 : 25,996.90 = 10,881.96 : x
  2. Step 2: Convert to fraction form
    18,838.12/25,996.90 = 10,881.96/x
  3. Step 3: Cross multiply
    18,838.12x = 25,996.90 × 10,881.96
  4. Step 4: Simplify right side
    18,838.12x = 282,897,225.92
  5. Step 5: Solve for x
    x = 282,897,225.92/18,838.12
  6. Step 6: Final answer
    x = 15,017.27

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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.