Home / 18,395.74-27,557.43-12,136.63

Finding the Fourth Proportional to 18,395.74, 27,557.43 and 12,136.63

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Solution

The fourth proportional to 18,395.74, 27,557.43 and 12,136.63 is: 18,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395.74 : 27,557.43 = 12,136.63 : x
  2. Step 2: Convert to fraction form
    18,395.74/27,557.43 = 12,136.63/x
  3. Step 3: Cross multiply
    18,395.74x = 27,557.43 × 12,136.63
  4. Step 4: Simplify right side
    18,395.74x = 334,454,331.66
  5. Step 5: Solve for x
    x = 334,454,331.66/18,395.74
  6. Step 6: Final answer
    x = 18,181.08

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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.