Home / 18,711.49-25,821.73-10,213.58

Finding the Fourth Proportional to 18,711.49, 25,821.73 and 10,213.58

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Solution

The fourth proportional to 18,711.49, 25,821.73 and 10,213.58 is: 14,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.49 : 25,821.73 = 10,213.58 : x
  2. Step 2: Convert to fraction form
    18,711.49/25,821.73 = 10,213.58/x
  3. Step 3: Cross multiply
    18,711.49x = 25,821.73 × 10,213.58
  4. Step 4: Simplify right side
    18,711.49x = 263,732,305.09
  5. Step 5: Solve for x
    x = 263,732,305.09/18,711.49
  6. Step 6: Final answer
    x = 14,094.67

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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.