Home / 18,424.20-27,636.48-6,740.76

Finding the Fourth Proportional to 18,424.20, 27,636.48 and 6,740.76

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Solution

The fourth proportional to 18,424.20, 27,636.48 and 6,740.76 is: 10,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.20 : 27,636.48 = 6,740.76 : x
  2. Step 2: Convert to fraction form
    18,424.20/27,636.48 = 6,740.76/x
  3. Step 3: Cross multiply
    18,424.20x = 27,636.48 × 6,740.76
  4. Step 4: Simplify right side
    18,424.20x = 186,290,878.92
  5. Step 5: Solve for x
    x = 186,290,878.92/18,424.20
  6. Step 6: Final answer
    x = 10,111.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.