Home / 18,133.99-27,197.85-4,807.07

Finding the Fourth Proportional to 18,133.99, 27,197.85 and 4,807.07

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Solution

The fourth proportional to 18,133.99, 27,197.85 and 4,807.07 is: 7,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.99 : 27,197.85 = 4,807.07 : x
  2. Step 2: Convert to fraction form
    18,133.99/27,197.85 = 4,807.07/x
  3. Step 3: Cross multiply
    18,133.99x = 27,197.85 × 4,807.07
  4. Step 4: Simplify right side
    18,133.99x = 130,742,015.80
  5. Step 5: Solve for x
    x = 130,742,015.80/18,133.99
  6. Step 6: Final answer
    x = 7,209.78

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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.