Home / 18,136.74-27,188.72-6,447.23

Finding the Fourth Proportional to 18,136.74, 27,188.72 and 6,447.23

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Solution

The fourth proportional to 18,136.74, 27,188.72 and 6,447.23 is: 9,665.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.74 : 27,188.72 = 6,447.23 : x
  2. Step 2: Convert to fraction form
    18,136.74/27,188.72 = 6,447.23/x
  3. Step 3: Cross multiply
    18,136.74x = 27,188.72 × 6,447.23
  4. Step 4: Simplify right side
    18,136.74x = 175,291,763.07
  5. Step 5: Solve for x
    x = 175,291,763.07/18,136.74
  6. Step 6: Final answer
    x = 9,665.01

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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.