Home / 18,289.35-27,435.03-5,140.68

Finding the Fourth Proportional to 18,289.35, 27,435.03 and 5,140.68

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Solution

The fourth proportional to 18,289.35, 27,435.03 and 5,140.68 is: 7,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.35 : 27,435.03 = 5,140.68 : x
  2. Step 2: Convert to fraction form
    18,289.35/27,435.03 = 5,140.68/x
  3. Step 3: Cross multiply
    18,289.35x = 27,435.03 × 5,140.68
  4. Step 4: Simplify right side
    18,289.35x = 141,034,710.02
  5. Step 5: Solve for x
    x = 141,034,710.02/18,289.35
  6. Step 6: Final answer
    x = 7,711.30

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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.