Home / 18,400.68-27,605.69-5,253.11

Finding the Fourth Proportional to 18,400.68, 27,605.69 and 5,253.11

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Solution

The fourth proportional to 18,400.68, 27,605.69 and 5,253.11 is: 7,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.68 : 27,605.69 = 5,253.11 : x
  2. Step 2: Convert to fraction form
    18,400.68/27,605.69 = 5,253.11/x
  3. Step 3: Cross multiply
    18,400.68x = 27,605.69 × 5,253.11
  4. Step 4: Simplify right side
    18,400.68x = 145,015,561.90
  5. Step 5: Solve for x
    x = 145,015,561.90/18,400.68
  6. Step 6: Final answer
    x = 7,880.99

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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.