Home / 18,119.67-27,178.28-4,970.94

Finding the Fourth Proportional to 18,119.67, 27,178.28 and 4,970.94

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Solution

The fourth proportional to 18,119.67, 27,178.28 and 4,970.94 is: 7,456.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.67 : 27,178.28 = 4,970.94 : x
  2. Step 2: Convert to fraction form
    18,119.67/27,178.28 = 4,970.94/x
  3. Step 3: Cross multiply
    18,119.67x = 27,178.28 × 4,970.94
  4. Step 4: Simplify right side
    18,119.67x = 135,101,599.18
  5. Step 5: Solve for x
    x = 135,101,599.18/18,119.67
  6. Step 6: Final answer
    x = 7,456.07

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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.