Home / 18,119.34-27,173.52-10,721.84

Finding the Fourth Proportional to 18,119.34, 27,173.52 and 10,721.84

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Solution

The fourth proportional to 18,119.34, 27,173.52 and 10,721.84 is: 16,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.34 : 27,173.52 = 10,721.84 : x
  2. Step 2: Convert to fraction form
    18,119.34/27,173.52 = 10,721.84/x
  3. Step 3: Cross multiply
    18,119.34x = 27,173.52 × 10,721.84
  4. Step 4: Simplify right side
    18,119.34x = 291,349,997.81
  5. Step 5: Solve for x
    x = 291,349,997.81/18,119.34
  6. Step 6: Final answer
    x = 16,079.50

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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.