Home / 18,118.38-27,133.68-9,210.27

Finding the Fourth Proportional to 18,118.38, 27,133.68 and 9,210.27

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Solution

The fourth proportional to 18,118.38, 27,133.68 and 9,210.27 is: 13,793.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.38 : 27,133.68 = 9,210.27 : x
  2. Step 2: Convert to fraction form
    18,118.38/27,133.68 = 9,210.27/x
  3. Step 3: Cross multiply
    18,118.38x = 27,133.68 × 9,210.27
  4. Step 4: Simplify right side
    18,118.38x = 249,908,518.89
  5. Step 5: Solve for x
    x = 249,908,518.89/18,118.38
  6. Step 6: Final answer
    x = 13,793.09

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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.