Home / 12,428.04-18,637.10-6,183.48

Finding the Fourth Proportional to 12,428.04, 18,637.10 and 6,183.48

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Solution

The fourth proportional to 12,428.04, 18,637.10 and 6,183.48 is: 9,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428.04 : 18,637.10 = 6,183.48 : x
  2. Step 2: Convert to fraction form
    12,428.04/18,637.10 = 6,183.48/x
  3. Step 3: Cross multiply
    12,428.04x = 18,637.10 × 6,183.48
  4. Step 4: Simplify right side
    12,428.04x = 115,242,135.11
  5. Step 5: Solve for x
    x = 115,242,135.11/12,428.04
  6. Step 6: Final answer
    x = 9,272.75

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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.