Home / 18,140.81-27,218.21-7,055.30

Finding the Fourth Proportional to 18,140.81, 27,218.21 and 7,055.30

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Solution

The fourth proportional to 18,140.81, 27,218.21 and 7,055.30 is: 10,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.81 : 27,218.21 = 7,055.30 : x
  2. Step 2: Convert to fraction form
    18,140.81/27,218.21 = 7,055.30/x
  3. Step 3: Cross multiply
    18,140.81x = 27,218.21 × 7,055.30
  4. Step 4: Simplify right side
    18,140.81x = 192,032,669.78
  5. Step 5: Solve for x
    x = 192,032,669.78/18,140.81
  6. Step 6: Final answer
    x = 10,585.68

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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.