Home / 18,280.49-27,420.62-5,132.87

Finding the Fourth Proportional to 18,280.49, 27,420.62 and 5,132.87

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Solution

The fourth proportional to 18,280.49, 27,420.62 and 5,132.87 is: 7,699.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.49 : 27,420.62 = 5,132.87 : x
  2. Step 2: Convert to fraction form
    18,280.49/27,420.62 = 5,132.87/x
  3. Step 3: Cross multiply
    18,280.49x = 27,420.62 × 5,132.87
  4. Step 4: Simplify right side
    18,280.49x = 140,746,315.01
  5. Step 5: Solve for x
    x = 140,746,315.01/18,280.49
  6. Step 6: Final answer
    x = 7,699.27

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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.