Home / 18,660.06-27,981.81-9,892.92

Finding the Fourth Proportional to 18,660.06, 27,981.81 and 9,892.92

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Solution

The fourth proportional to 18,660.06, 27,981.81 and 9,892.92 is: 14,834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.06 : 27,981.81 = 9,892.92 : x
  2. Step 2: Convert to fraction form
    18,660.06/27,981.81 = 9,892.92/x
  3. Step 3: Cross multiply
    18,660.06x = 27,981.81 × 9,892.92
  4. Step 4: Simplify right side
    18,660.06x = 276,821,807.79
  5. Step 5: Solve for x
    x = 276,821,807.79/18,660.06
  6. Step 6: Final answer
    x = 14,834.99

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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.